
Coefficient Correlation
Authored by Anthony Clark
Mathematics
9th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If r=0 , then there is...
Negative association
No correlation
Positive association
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scatter plot shows the number coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?
A) As the number of coffee shops increase, violent crimes appears to increase.
B) The line of best fit (regression line) shows a positive correlation
C) The data has a positive correlation coefficient
D) An increase in coffee shops causes an increase in violent crimes
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
strong positive
strong negative
weak positive
weak negative
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Describe the correlation in the graph shown.
No Correlation
Strong Negative
Weak Positive
Weak Negative
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient
r=-1
r=1
r=-0.5
r=0.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient.
r=0
r=-1
r=1
r=2
7.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Estimate the correlation coefficient for this scatterplot.
r = 1.2
r = 0.89
r = 0
r = -0.89
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