Scatter Plots, Trend Lines, and Two Way Table Unit Review

What is the type of correlation?

• Negative 
• no association
• positive 

What type of correlation does this graph have?

• positive
• negative
• none
• all of the above

What type of correlation does this scatter plot show?

• positive linear association
• negative linear association
• no association
• nonlinear association

What type of correlation does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

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

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

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

• 65

• 92

• 70

• 76

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.

If a scatterplot has no correlation then...

• ...it has no ordered pairs
• ...it has ordered pairs that have a negative pattern
• ...its ordered pairs have no predictable pattern
• ..it has ordered pairs that have a positive pattern