Scatter Plots and Data Study Guide

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170

• y = 25x + 170

• y = -(5/8) x + 170

• y = (5/8) x + 170

Tags

CCSS.HSF.LE.B.5

Looking at the graph, what is the correlation between the x and y variables?

• y increases as x increases

• y is constant

• y decreases as x descreases

• y decreases as x increases

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.F.A.3

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

• A

• B

• C

• D

• 115

• 95

• 125

• 105

Christina did a survey to see if there was a relationship between the amount of time spent studying for a Science quiz and the score received afterwards. She recorded the results on a scatter plot. Use the scatter plot to answer the following question.

How many

students who studied less than 10 minutes scored between a 75 and 85 on the Science test?

• 6

• 8

• 7

• 9

Tags

CCSS.HSF.IF.B.4

• F

• G

• H

• J

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

• A

• B

• C

• D

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2