IB Math AI Yr 2 Quiz 2

Which correlation coefficient shows the strongest linear relationship between x and y?

• 0.97

• -0.02

• 0.86

• -0.99

Tags

CCSS.HSS.ID.C.8

Correlation coefficients are:

• A point that does not fit the overall pattern.

• A histogram.

• A numerical measure of the direction and strength of a linear association.

• A graphical display.

Tags

CCSS.HSS.ID.C.8

Which value of r represents data with a strong negative linear correlation between two variables?

• -0.86

• -0.50

• 0.89

• 0.07

Tags

CCSS.HSS.ID.C.8

Choose two words from those listed below to best describe the correlation between the two variables.

• strong

• weak

• positive

• negative

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Choose two words from those listed below to best describe the correlation between the two variables.

• strong

• weak

• positive

• negative

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Choose two words from those listed below to best describe the correlation between the two variables.

• strong

• weak

• positive

• negative

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 65
• 92
• 70
• 76

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Make a prediction for a resting heart rate after 6 hours of exercise a week.

• 6
• 50
• 55
• 80

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

Which scatterplot suggests a linear relationship between x and y?

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• 
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Which scatterplot does NOT suggest a linear relationship between x and y?

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