This document provides an overview of frequency distributions and how to construct a frequency distribution table from a set of data. It discusses the key steps: 1) determining the range of the data, 2) choosing the number of classes, 3) calculating the class width, and 4) tallying the frequency of observations within each class interval to populate the table. Guidelines for constructing frequency tables are also outlined, such as using mutually exclusive and exhaustive class intervals of uniform width. An example of constructing a 7-class frequency table from a set of 50 observations is shown to demonstrate the process.
This presentation gives you a brief idea;
-definition of frequency distribution
- types of frequency distribution
-types of charts used in the distribution
-a problem on creating types of distribution
-advantages and limitations of the distribution
This presentation gives you a brief idea;
-definition of frequency distribution
- types of frequency distribution
-types of charts used in the distribution
-a problem on creating types of distribution
-advantages and limitations of the distribution
The standard deviation is a measure of the spread of scores within a set of data. Usually, we are interested in the standard deviation of a population.
Topic: Frequency Distribution
Student Name: Abdul Hafeez
Class: B.Ed. (Hons) Elementary
Project Name: “Young Teachers' Professional Development (TPD)"
"Project Founder: Prof. Dr. Amjad Ali Arain
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Distinguish between Parameter and Statistic.
Calculate sample variance and sample standard deviation.
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The standard deviation is a measure of the spread of scores within a set of data. Usually, we are interested in the standard deviation of a population.
Topic: Frequency Distribution
Student Name: Abdul Hafeez
Class: B.Ed. (Hons) Elementary
Project Name: “Young Teachers' Professional Development (TPD)"
"Project Founder: Prof. Dr. Amjad Ali Arain
Faculty of Education, University of Sindh, Pakistan
Distinguish between Parameter and Statistic.
Calculate sample variance and sample standard deviation.
Visit the website for more services: https://cristinamontenegro92.wixsite.com/onevs
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2. Frequency Distribution
— A representation,
in a tabular format,
which displays the number of
observations within a given interval. The
intervals must be mutually exclusive (each
score must belong to exactly one class)
and exhaustive (Including every possible
element).
4. Let’s Try!!!
— Agesof 50 men randomly
selected from a population
who died in gunfire are given.
Construct a frequency
distribution table having 7
classes.
10. General Process of
Constructing a Frequency
Table
— STEP 1: Determine the
range.
Range (R)= Highest Value – Lowest
Value
Example in data: 29,55,65,23,45,86,44
Find Range
11. — STEP
2. Determine the tentative
number of classes (k)
— Note:
— These classes are usually specified in
question.
— The number of classes should be between 5
and 20. The actual number of classes may
be affected by convenience or other
subjective factors.
12. — STEP 3. Find the class width by
dividing the range by the number
of classes.
Range
class width or class mark =
number of classes
R
⇔ c=
k
(Always round – off )
13. — STEP 4. Determine the
frequency for each class by
referring to the tally columns
and present the results in a table.
14. When constructing frequency
tables, the following guidelines
should be followed.
— The classes must be mutually
exclusive. That is, each score
must belong to exactly one
class.
— Include all classes, even if the
frequency might be zero.
15. — Allclasses should have the
same width, although it is
sometimes impossible to avoid
open – ended intervals such as
“65 years or older”.
— The number of classes should
be between 5 and 20.
16. Using Table:
— What is the lower class limit of
the highest class? Upper class
limit of the lowest class?
— Find the class mark of the class
43 – 51.
— What is the frequency of the
class 16 – 24?
32. Feedback form
MET’s Institute of Management, Bhujbal Knowledge City, Adgaon, Nashik
1. Name of the student:
2 . Graduation in:
3. Please tick whether you had learnt statistics in your
graduation
level: Yes No
4. Please grade yourself according to you in which category
you lie in the knowledge of mathematics and statistics
1.Poor 2. Not good 3.Average 4.Good
5.Excellent
33. 5. Whether Induction on basics of Mathematics
and Statistics was fruitful
for you ? Yes / No
If Yes then please state why?
6. Do you need any change in the current
teaching methodology adopted for statistics?
7. Any suggestions related to the subject
statistics: