Scatterplot

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

Find the slope for the trend line using points (2,2) and (4,3)

• 2

• 1/2

• -2

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

Which with is the line of best fit?

• Black

• Orange

• Red

• Blue

If the debate team practiced for only 1 hour, how many debates are they expected to win?

• 2

• 6

• 10

• 14

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What type of association does this scatter plot show?

• positive linear association

• negative linear association

• no association

• nonlinear association

What type of association does this scatter plot represent?

• positive linear association

• negative association

• no association

• nonlinear association

Which statement is the most accurate interpretation of the data?

• As time went by, the temperature tended to decrease

• As time went by the temperature tended to increase

• There is no relationship between time and temperature.