1. The document analyzes the winning heights of men's high jump gold medalists at the Olympic Games from 1896 to 2008. Various mathematical models are tested to fit the data, including linear, logarithmic, cubic, and Gaussian functions.
2. The initial linear model is found to fit the data reasonably from 1932 to around 1990 but fails outside this range. A modified logarithmic model provides a better fit overall but still has limitations.
3. Cubic and Gaussian models also show good fits for parts of the data trend but cannot fully represent fluctuations throughout the entire data set from 1896 to 2008. Further refinement of models is needed to accurately capture the entire trend over time.
Curve-fitting Project - Linear Model (due at the end of Week 5)I.docxdorishigh
Curve-fitting Project - Linear Model (due at the end of Week 5)
Instructions
For this assignment, collect data exhibiting a relatively linear trend, find the line of best fit, plot the data and the line, interpret the slope, and use the linear equation to make a prediction. Also, find r2 (coefficient of determination)
and r (correlation coefficient). Discuss your findings. Your topic may be that is related to sports, your work, a hobby, or something you find interesting. If you choose, you may use the suggestions described below.
A Linear Model Example and Technology Tips are provided in separate documents.
Tasks for Linear Regression Model (LR)
(LR-1) Describe your topic, provide your data, and cite your source. Collect at least 8 data points. Label appropriately. (Highly recommended: Post this information in the Linear Model Project discussion as well as in your completed project. Include a brief informative description in the title of your posting. Each student must use different data.)
The idea with the discussion posting is two-fold: (1) To share your interesting project idea with your classmates, and (2) To give me a chance to give you a brief thumbs-up or thumbs-down about your proposed topic and data. Sometimes students get off on the wrong foot or misunderstand the intent of the project, and your posting provides an opportunity for some feedback. Remark: Students may choose similar topics, but must have different data sets. For example, several students may be interested in a particular Olympic sport, and that is fine, but they must collect different data, perhaps from different events or different gender.
(LR-2) Plot the points (x, y) to obtain a scatterplot. Use an appropriate scale on the horizontal and vertical axes and be sure to label carefully. Visually judge whether the data points exhibit a relatively linear trend. (If so, proceed. If not, try a different topic or data set.)
(LR-3) Find the line of best fit (regression line) and graph it on the scatterplot. State the equation of the line. (LR-4) State the slope of the line of best fit. Carefully interpret the meaning of the slope in a sentence or two.
(LR-5) Find and state the value of r2, the coefficient of determination, and r, the correlation coefficient. Discuss your findings in a few sentences. Is r positive or negative? Why? Is a line a good curve to fit to this data? Why or why not? Is the linear relationship very strong, moderately strong, weak, or nonexistent?
(LR-6) Choose a value of interest and use the line of best fit to make an estimate or prediction. Show calculation work.
(LR-7) Write a brief narrative of a paragraph or two. Summarize your findings and be sure to mention any aspect of the linear model project (topic, data, scatterplot, line, r, or estimate, etc.) that you found particularly important or interesting.
You may submit all of your project in one document or a combination of documents, which may consist of word processing documents or sprea.
Math 095 Final Exam Review (updated 102811) This .docxandreecapon
Math 095 Final Exam Review (updated 10/28/11)
This review is an attempt to provide a comprehensive review of our course concepts and problem types, but there
is no guarantee the final will only include problems like in this review. This is a good starting point in your review
for the final, but you should also study the textbook, your notes and homework.
Module I – Sections 1.1, 1.6, 2.1, 2.2, 2.3
1. Consider the graph of the function f to the right.
a) How can you tell the graph represents a
function?
b) What is the independent variable?
c) What is the dependent variable?
d) What is the value of
(6)f ?
( 2)f ?
e) For what values of x is ( ) 2f x ?
f) What is the domain of the function?
g) What is the range of the function?
- 2
- 1
2
6
5
4
3
1
654321- 1- 2
x
y
2. Do the tables represent functions? How do you know?
a) b)
3. The graph at right represents a scattergram and a linear model for the number of companies on the NASDAQ1 stock
market between 1990 and 1999, where n represents the number of companies t years after 1990.
a) Using the linear model, in what year were there
approximately 3500 companies?
b) What is the n-intercept of the linear model and what
does it mean?
c) What is the t-intercept and what does it mean?
d) From the linear model, what would you predict the
number of companies to be in the year 1996?
x 3 5 7 3 5
y 2 6 8 9 6
x 5 4 2 1 0
y 2 6 8 9 6
Years since 1990
0 2 4 6 108 12
1
2
3
4
N
um
b
er
o
f
co
m
p
an
ie
s
(t
h
o
us
an
ds
)
Number of Companies on the Nasdaq Stock Market
between 1990 and 1999n
t
5
Online MTH095 Final Review 2
KA 10/28/2011
4. Find a linear equation of the line that passes through the given pairs of points.
a) (3, 5) and (7,1)
b) (4, 6) and (2, 0)
5. The average consumption of sugar in the U.S. increased from 26 pounds per person in 1986 to 136 pounds per person
in 2006. Let p be the average number of pounds consumed t years after 1980. Find an equation of a linear model that
describes the data.
6. If 2( ) 2 4f x x , find the following.
a) ( 3)f
b) (0)f
c) (5.2)f
Module 2 – Sections 4.1, 4.2, 4.3, 4.4, 4.5
7. Simplify each of the following and write without negative exponents.
a)
2
3
4
y
b)
2 36
1 4
x y
x y
c) 252 25 xxx
d)
4
10
p
8. Simplify each expression using the laws of exponents. Write the answers with positive exponents.
a) 2 43 35 3x x
Online MTH095 Final Review 3
KA 10/28/2011
b)
3
44
5
x
x
c)
3
52
3
m
t
d)
1
26 4m n
9. Let
1
( ) (4)
2
xf x
a) What is the y-intercept of the graph of f ?
b) Does f represent growth or decay?
c) Find ( 2)f
d) Find (2)f
e) Find x when ( ) 32f x
10. Find ...
Curve-fitting Project - Linear Model (due at the end of Week 5)I.docxdorishigh
Curve-fitting Project - Linear Model (due at the end of Week 5)
Instructions
For this assignment, collect data exhibiting a relatively linear trend, find the line of best fit, plot the data and the line, interpret the slope, and use the linear equation to make a prediction. Also, find r2 (coefficient of determination)
and r (correlation coefficient). Discuss your findings. Your topic may be that is related to sports, your work, a hobby, or something you find interesting. If you choose, you may use the suggestions described below.
A Linear Model Example and Technology Tips are provided in separate documents.
Tasks for Linear Regression Model (LR)
(LR-1) Describe your topic, provide your data, and cite your source. Collect at least 8 data points. Label appropriately. (Highly recommended: Post this information in the Linear Model Project discussion as well as in your completed project. Include a brief informative description in the title of your posting. Each student must use different data.)
The idea with the discussion posting is two-fold: (1) To share your interesting project idea with your classmates, and (2) To give me a chance to give you a brief thumbs-up or thumbs-down about your proposed topic and data. Sometimes students get off on the wrong foot or misunderstand the intent of the project, and your posting provides an opportunity for some feedback. Remark: Students may choose similar topics, but must have different data sets. For example, several students may be interested in a particular Olympic sport, and that is fine, but they must collect different data, perhaps from different events or different gender.
(LR-2) Plot the points (x, y) to obtain a scatterplot. Use an appropriate scale on the horizontal and vertical axes and be sure to label carefully. Visually judge whether the data points exhibit a relatively linear trend. (If so, proceed. If not, try a different topic or data set.)
(LR-3) Find the line of best fit (regression line) and graph it on the scatterplot. State the equation of the line. (LR-4) State the slope of the line of best fit. Carefully interpret the meaning of the slope in a sentence or two.
(LR-5) Find and state the value of r2, the coefficient of determination, and r, the correlation coefficient. Discuss your findings in a few sentences. Is r positive or negative? Why? Is a line a good curve to fit to this data? Why or why not? Is the linear relationship very strong, moderately strong, weak, or nonexistent?
(LR-6) Choose a value of interest and use the line of best fit to make an estimate or prediction. Show calculation work.
(LR-7) Write a brief narrative of a paragraph or two. Summarize your findings and be sure to mention any aspect of the linear model project (topic, data, scatterplot, line, r, or estimate, etc.) that you found particularly important or interesting.
You may submit all of your project in one document or a combination of documents, which may consist of word processing documents or sprea.
Math 095 Final Exam Review (updated 102811) This .docxandreecapon
Math 095 Final Exam Review (updated 10/28/11)
This review is an attempt to provide a comprehensive review of our course concepts and problem types, but there
is no guarantee the final will only include problems like in this review. This is a good starting point in your review
for the final, but you should also study the textbook, your notes and homework.
Module I – Sections 1.1, 1.6, 2.1, 2.2, 2.3
1. Consider the graph of the function f to the right.
a) How can you tell the graph represents a
function?
b) What is the independent variable?
c) What is the dependent variable?
d) What is the value of
(6)f ?
( 2)f ?
e) For what values of x is ( ) 2f x ?
f) What is the domain of the function?
g) What is the range of the function?
- 2
- 1
2
6
5
4
3
1
654321- 1- 2
x
y
2. Do the tables represent functions? How do you know?
a) b)
3. The graph at right represents a scattergram and a linear model for the number of companies on the NASDAQ1 stock
market between 1990 and 1999, where n represents the number of companies t years after 1990.
a) Using the linear model, in what year were there
approximately 3500 companies?
b) What is the n-intercept of the linear model and what
does it mean?
c) What is the t-intercept and what does it mean?
d) From the linear model, what would you predict the
number of companies to be in the year 1996?
x 3 5 7 3 5
y 2 6 8 9 6
x 5 4 2 1 0
y 2 6 8 9 6
Years since 1990
0 2 4 6 108 12
1
2
3
4
N
um
b
er
o
f
co
m
p
an
ie
s
(t
h
o
us
an
ds
)
Number of Companies on the Nasdaq Stock Market
between 1990 and 1999n
t
5
Online MTH095 Final Review 2
KA 10/28/2011
4. Find a linear equation of the line that passes through the given pairs of points.
a) (3, 5) and (7,1)
b) (4, 6) and (2, 0)
5. The average consumption of sugar in the U.S. increased from 26 pounds per person in 1986 to 136 pounds per person
in 2006. Let p be the average number of pounds consumed t years after 1980. Find an equation of a linear model that
describes the data.
6. If 2( ) 2 4f x x , find the following.
a) ( 3)f
b) (0)f
c) (5.2)f
Module 2 – Sections 4.1, 4.2, 4.3, 4.4, 4.5
7. Simplify each of the following and write without negative exponents.
a)
2
3
4
y
b)
2 36
1 4
x y
x y
c) 252 25 xxx
d)
4
10
p
8. Simplify each expression using the laws of exponents. Write the answers with positive exponents.
a) 2 43 35 3x x
Online MTH095 Final Review 3
KA 10/28/2011
b)
3
44
5
x
x
c)
3
52
3
m
t
d)
1
26 4m n
9. Let
1
( ) (4)
2
xf x
a) What is the y-intercept of the graph of f ?
b) Does f represent growth or decay?
c) Find ( 2)f
d) Find (2)f
e) Find x when ( ) 32f x
10. Find ...
InstructionsFor this assignment, collect data exhibiting a relat.docxdirkrplav
Instructions
For this assignment, collect data exhibiting a relatively linear trend, find the line of best fit, plot the data and the line, interpret the slope, and use the linear equation to make a prediction. Also, find r2 (coefficient of determination) and r (correlation coefficient). Discuss your findings. Your topic may be that is related to sports, your work, a hobby, or something you find interesting. If you choose, you may use the suggestions described below.
A Linear Model Example and Technology Tips are provided in separate documents.
Tasks for Linear Regression Model (LR)
(LR-1) Describe your topic, provide your data, and cite your source. Collect at least 8 data points. Label appropriately. (Highly recommended: Post this information in the Linear Model Project discussion as well as in your completed project. Include a brief informative description in the title of your posting. Each student must use different data.)
The idea with the discussion posting is two-fold: (1) To share your interesting project idea with your classmates, and (2) To give me a chance to give you a brief thumbs-up or thumbs-down about your proposed topic and data. Sometimes students get off on the wrong foot or misunderstand the intent of the project, and your posting provides an opportunity for some feedback. Remark: Students may choose similar topics, but must have different data sets. For example, several students may be interested in a particular Olympic sport, and that is fine, but they must collect different data, perhaps from different events or different gender.
(LR-2) Plot the points (x, y) to obtain a scatterplot. Use an appropriate scale on the horizontal and vertical axes and be sure to label carefully. Visually judge whether the data points exhibit a relatively linear trend. (If so, proceed. If not, try a different topic or data set.)
(LR-3) Find the line of best fit (regression line) and graph it on the scatterplot. State the equation of the line.
(LR-4) State the slope of the line of best fit. Carefully interpret the meaning of the slope in a sentence or two.
(LR-5) Find and state the value of r2, the coefficient of determination, and r, the correlation coefficient. Discuss your findings in a few sentences. Is r positive or negative? Why? Is a line a good curve to fit to this data? Why or why not? Is the linear relationship very strong, moderately strong, weak, or nonexistent?
(LR-6) Choose a value of interest and use the line of best fit to make an estimate or prediction. Show calculation work.
(LR-7) Write a brief narrative of a paragraph or two. Summarize your findings and be sure to mention any aspect of the linear model project (topic, data, scatterplot, line, r, or estimate, etc.) that you found particularly important or interesting.
Scatterplots, Linear Regression, and Correlation [Section 1.4, starting on page 114 in the textbook]
When we have a set of data, often we would like to develop a model that fits the data.
First .
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
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Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
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Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
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Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...
Math ia 2
1. Non Sereeyothin
Math Period 3
May 19, 2011
Gold Medal Heights
Objective: to consider the winning height for the men’s high jump in the Olympic Games.
The table below gives the height (in centimeter) achieved by the gold medalists at various Olympic
Games.
Year 1932 1936 1948 1952 1956 1960 1964 1968 1972 1976 1980
Height 197 203 198 204 212 216 218 224 223 225 236
(cm)
Note: The Olympic Games were not held in 1940 and 1944.
Task 1: Using technology, plot the data points on a graph. Define all variables used and state any
parameters clearly. Discuss any possible constraints of the task.
Graph 1: This graph shows the correlation between the year and the height of the gold medal winners in
the Olympic. The x-axis on this graph presents the years that the data was collect while the y-axis
presents the height of the gold winner of that current year. This graph was graphed using logger pro.
Constraints: During the years 1940 and 1944, the Olympic was cancelled due to the world war. Due to
this, the data point does not continue according to its intervals of 4 years. It can be assumed that the
2. high jumpers lost their practicing times during the world war, limiting their ability to improve on their
skill, making the highest jumper in the year 1948 when the Olympic resumed lower than that of the
previous year. Because of this the first two data points can be eliminated from the calculation of the
equation due to the fact that the trend seems to start over at the year 1948.
Task 2: What type of function models the behavior of the graph? Explain why you chose this function.
Analytically create an equation to model the data in the above table.
The function that models the behavior of the graph the best is a linear function since the graph trends to
correlate in a straight line as shown by the line of best fit.
Calculation: To calculate the line of best fit, the data points were split in half by the green line and a
point was chosen to be the median of both sides as shown below.
Graph 2: Shows the midline splitting the data into two sections and the point that are chosen on both
sides to represent the median.
An equation was then found that went through both the points. This equation was then used as the line
of best fit for the data. The equation y=mx+b was used to calculate the line of best fit since the trend of
that data seemed to be linear.
3. Graph 3: Shows the two new points in comparison to the rest of the data
By using the coordinates of the two points, the equation of the line of best was found as shown below.
-1745.12
Task 3: On a new set of axes, draw your model function and the original graph. Comment on any
differences. Discuss the limitations of your model. Refine your model is necessary.
4. Graph 4: Shows the line of best fit as found by using the two median points
As seen in the graph shown above, the line of best fit goes through the middle of all the data. Since this
line was calculated using the two points (shown in blue), the line goes through both points. The first
blue point is an accurate representation of the left side of the data since the data points are in a straight
line in correlation. However the second point was not quite accurate due to the fact that in years 1972
and 1976 there was not much improvement in the height of the high jumpers so the points that are
used to calculate the median is quite off. This model does not work for the years after 1980 because
there are limitations to how high a person can jump since in modern society we cannot yet overcome
the forces of gravity. Since this model depicts that the years after 1980 there will be a steady increase in
the height of the gold medal heights, this model is then false after about 10 years after 1980. This
model also depicts that before the year 1952, there is a steady decline in the heights of the gold medal
heights which is not true as seen in the years 1932 and 1936. This linear model is only valid in range of
the years 1932 to about 1990 which is in the range of the data given.
Task 4: Use technology to find another function that models the data. On a new set of axes, draw both
your model functions. Comment on any differences.
5. Graph 5: Shows both models (linear and logarithm) in relative to each other
The equation used to model the line on bottom is the natural logarithm model while the equation used
to model the line above is the linear model. When comparing the two models, the difference between
the two is that the y-intercept is lower for the natural logarithm model than the linear model and the
slope appears to be quite parallel.
Task 5: Had the games been held in 1940 and 1944, estimate what the winning heights would have been
and justify your answers.
Using the natural logarithm model as the function, the years 1940 and 1944 were plugged into the
equation and the heights of both years are calculated as shown below.
( )
( )
( )
Due to the elimination of the first two points, the estimation of the years 1940 and 1944 will be lower
than expected because the slope of the graph will be much higher.
Task 6: Use your model to predict the winning height in 1984 and in 2016. Comment on your answers.
6. ( )
( )
( )
The height estimated by this model in the year 1984 seems credible since the increase in height does not
seem to be out of reach of the human capability. However, in the year 2016, the height that was
reached was 270cm which seems to be higher than a human can possibly jump. This is because the
natural logarithm model depicts a straight line following the year 1980 and because a steady increase in
the heights of the Olympic high jumpers does not seem possible for a human being, the further away
from the year 1980 the lower the credibility of the answer.
The following table gives the winning heights for all the other Olympic Games since 1896.
Year 1896 1904 1908 1912 1920 1928 1932 1936 1948 1952 1956
Height 190 180 191 193 193 194 197 203 198 204 212
(cm)
Year 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004 2008
Height 216 218 224 223 225 236 235 238 234 239 235 236 236
(cm)
Task 7: How well does your model fit the additional data? Discuss the overall trend from 1896 to 2008,
with specific references to significant fluctuations. What modifications, if any, need to be made to your
made to fit the data?
7. Graph 6: Shows the logarithm model with additional points of data
The model that was used to find the line of best fit in the last task does not fit the additional data. This
is because during the year 1896 and 2008 there has been fluctuations in the height of the gold winners.
The data starts out as a straight line with an outlier in the year 1904 then curves upwards in the years
leading up to the world war (1928, 1932, 1936). During the world war the heights was assumed to have
dropped due to the lost in practice times so the trend starts again in 1948 with a straight linear
correlation all the way through to the year 1988. After that the data seems to level off into a horizontal
correlation.
The modification that needs to be made to the model is that all data points must be included to have a
better sense of the median and range of the data to be more accurate as shown below.
8. Graph 7: Shows the additional points and the newly modified logarithm model
Furthermore, there are many other functions that can be used to model these data points such as the
cubic model and the Gaussian model. As shown below the cubic model can model both the upward
curve in the years leading to the world war and the leveling off during the last 4 to 5 years. However the
model curves upward before the year1896 and curves downward after the year 2008 which these two
directions does not agree with the data given so this model can only be used between the years 1896 to
the year 2008.
Graph 8: Shows the cubic model in relation to all the data points
9. Graph 9: Shows the Gaussian model in relationship to all the data points
The Gaussian model can also be used to model this part of the data but it is different from the cubic
model since the Gaussian model starts off with a level and horizontal line then curves up similarly to the
cubic model. In addition to that the Gaussian model also models the leveling off as the years approach
2008 but has the same limitation as the cubic model as the graph slopes back downwards after the year
2008. The Gaussian model is a better representation of the data since at the beginning of the data rage
the slow does not curve downward before going back upwards like the cubic model. However, the
disadvantage that the Gaussian model and the cubic model have is that they both do not show the
fluctuation of the heights of the gold medalists during the year 1821 to the year 1896 (1821 being the
year that the Olympics started).