AP Stat Scatter Plots

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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 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

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.

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

Scatter plots can help determine if one variable has an effect on the other, or if there are overall trends, patterns, or ​ (a)   between the variables.

• associations

• bivariate

• numerical

Label the graphs

c

d

e

f

b

a

• - non linear

• + non linear

no association

• + linear

• - linear

just linear

An ​ (a)   is a point that does not fit the overall pattern or trend of a scatter plot.

• outlier

• cluster

Answer explanation

An outlier is a point that does not fit the overall pattern or trend of a scatter plot, making it the correct choice in this context.

Scatter plot are graphs that use points to display​ (a)   data.

• numerical

• bivariate

• association

• categorical

What is the trend for this scatter plot

• Negative

• Positive

• None