Scatter Plot Reviews

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

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 pages would be in a book with 19 chapters. 

• 150 pages

• 170 pages

• 190 pages

• 210 pages

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

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

What is a scatter plot?

• A graph that shows the relationship of two data sets.

• A graph drawn using rectangular bars to show how large each value is.

• A graph that shows information that is connected in some way.

• A graph that shows data changing over time.

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• no association

• nonlinear association

440 turtles

• 440 turtles

• 40 turtles

• 150 turtles

• 90 turtles

Martin and Daisy are arguing about which graph below represents a non-linear relationship. Martin believes Graph A represents a non-linear relationship, but Daisy thinks it is Graph B. Which of the following statements explain who is correct and why? 

• Graph A, because a trend line cannot be drawn through the data points

• Graph B because a trend line cannot be drawn through the data points

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

Which graph represents a positive correlation?

• B

• D

• C

• A