The document provides instructions for students on various topics: - Spreading out seats and taking notes individually for 5 minutes with no discussions - An upcoming graded quiz on statistics lessons - Khan Academy skills for review before the quiz - Modeling relationships between data using functions and scatterplots - Working in groups on a worksheet, staying focused, and asking questions by raising hands - Calculating the line of best fit by minimizing residuals - Expectations around homework, quizzes, making up missed work, and discussing grades.

1. Mr.Anas Lahrichi

2.  Spread the seats
 Listen carefully to the instructions
 Answer on your notebook,not graded
 Get your notebook out and write the topics we have
covered so far (keywords only)
 5 min
 Individual/no discussions
 Raise your hand quietly for questions and wait for me
to come
 Stay seated until I ask you to give me back the papers

3.  WALT : Graded Entry Tickets
 WILF :
 TIB :

4.  Quiz 4 Tuesday 9th October (Lesson 11 to
Lesson 15 in statistics package)

5.  Khanacademy skills posted in Google
classroom
 Good review for the quiz
 Don’t miss it, no excuses

6.  An association beween two numerical
variables can be represented in a scatterplot
 Scatterplots could have patterns : linear or
non linear
 A pattern in a scatterplot could be interpreted
as a correlation and eventually a causation (if
applies)

7.  Some statistical values that are mindblowing
 Voice level 0
 If you have a question write it down until the
end of the video then ask it
 https://www.youtube.com/watch?v=oGGYIw_
pIj8

8.  How to model the patterns present in
scatterplots ?
 Non-Linear pattern : described by a curve
 Two types of functions often used in
modeling nonlinear relationships are
quadratic and exponential functions.

11.  Why do we model relationships betwe”en data
as functions ?
 It allows us to predict
 Predict : Estimate values that are not present
in your data set
 How can a graph be used to make a
prediction?
 Estimate the value from the line or curve
 How can a model(equation) be used to make
a prediction?
 A value can be substituted for a variable in
the model to solve for the other variable.

15.  Answer on the worksheet handed out per group
• Listen carefully to the instructions
• Take 15 minutes to do the exercises on your own
• Stay focused
• Voice level 1 discussions (no excessive noise)
• Raise your hand quietly for questions and wait for
me to come

18.  For linear relationships : we use a line to
model the pattern
 I want you to be able to create the equation
for this type of model
 We will learn how to choose the best line of
fit

22.  What do we mean by line of best fit ?
 Line that best models a linear relationship
(closest to most values)
 What do we mean by residuals ?
 Difference in y values between actual and
predicted values
 What are residuals used for ?
 To determine which line is the best fit
 How do we use residuals ?
 The best fit line has the sum of residuals
close to 0

23.  Hardcopy is handed out
 Individual work,voice level 0
 I will be going around for help,raise your
hand
 Take 10 minutes to do this

25.  The line of best fit to a linear relationship is
the one that has the smallest sum of squared
residuals
 min( 𝑟𝑒𝑠𝑖𝑑𝑢𝑎𝑙𝑠
2
)

26.  Knowing the residuals,we can calculate the
error of prediction
 Small residuals => Good fit => Low error in
prediction
 Big residuals => Bad fit => Big error in
prediction

29.  Answer on the worksheet handed out per group
• Listen carefully to the instructions
• Take 15 minutes to do the exercises on your own
• Stay focused
• Voice level 1 discussions (no excessive noise)
• Raise your hand quietly for questions and wait for
me to come

30. Student Warning
1
Warning 2 Demerit

31.  Do not talk unless you have
permission (Raise your hand)
 No talking back (Come see in end
of class)
 Stay focused and on task
 Respect your classmates and
teacher
 Be prepared

32.  You are expected to do your homework on the
due date (no excuses)
 Every time you miss a homework you get a
strike,after 3 your parents are informed
 Not doing your homework will negatively affect
your grade in participation and quizzes

33.  The corrected quiz as well as rubrics will be posted on
Engrade.
 An individual assesment means no discussion at all. Any
talking will result in a 0.
 If you missed a quiz/test, you are responsible to come to
office hours to retake it.
 Come see me right after class or office hours to discuss
your copy, do not bring it up inside class.
 Any copy written in pencil cannot be considered for re-
grading, use a pen.