Analyze Scatter Plots

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the line of best fit to predict how many chapters would be in a book with 140 pages.

• 12 chapters

• 19 chapters

• 14 chapters

• 21 chapters

• 115

• 95

• 125

• 105

• $240

• $190

• $210

• $300

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

Which scatterplot best represents the table?

• A

• B

• C

• D

• A

• B

• C

• D

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

What relationship is shown in the scatter plot?

• As the cost goes down, the number sold goes down.

• As the cost goes up, the number sold goes down.

• As the cost goes down, the number sold remains the same.

• There is not relationship between cost and the number sold.