Linear Regression and Correlation Practice
Authored by Barbara White
Mathematics
9th - 12th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is this a positive, negative, or no relationship?
positive relationship
negative relationship
no relationship
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is this a positive, negative, or no relationship?
positive relationship
negative relationship
no relationship
Tags
CCSS.HSF-LE.A.1B
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is this a positive, negative, or no relatioship?
Positive relationship
Negative relationship
No relationship
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is r = -0.87 strong, moderate, or weak?
strong
moderate
weak
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A positive relationship (correlation coefficient) means...
variables have the same behavior (both up or both down)
variables have opposite behavior (one up, one down)
the variables are happy :)
the variables are sad :(
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the linear regression formula?
y=mx+b
y=ax+b
y=a+bx
Tags
CCSS.8.F.A.3
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Use your calculator to compute the least-squares regression line for the following data:
x: 3.9, 5.8, 4.8, 3.3, 1.8, 3.4, 3.2
y: 4.6, 4.1, 5.2, 4.5, 9.2, 5.6, 4.3
y = -0.97x+8.99
y = 0.97x-8.99
y = -62x+6443
= 62x-6443
Tags
CCSS.8.EE.C.8C
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