Lines and Plots

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

Tags

CCSS.HSF-LE.A.1B

What would be a good estimate for the regression (r) value?

• −1

• −0.8

• −0.4

• 0.7

What would be a good estimate for the regression (r) value?

• 1

• 0.6

• 0.2

• −0.4

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

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which scatter plot show a positive relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.EE.B.5

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

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• 50 min

• 80 min

• 45 min

• 60 min

Which equation best represents the data?

•  y= -3/5x + 2

•  y = 5/3x -2 

•  y = -3/5x - 2

•  y= 5/3x + 2

Which equation best represents the data?

•  y = 2x + 2

•  y= 1/2x - 2

•  y = -2x + 2

•  y = -1/2x + 2