Scatter Plot, Trend Lines, Two-Way Table and Frequency Tables

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

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 association.

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

Which scatter plot could have a trend line whose equation is y hat= 3x + 10?

• A

• B

• C

• D

Sammy is selling his comic book collection on the internet. The scatterplot shows how many comic books he has left at the end of each day. Using the trend line, after how many days should Sammy predict to have 10 comic books left?

• 8

• 0

• 9

• 2

Sammy is selling his comic book collection on the internet. The scatterplot shows how many comic books he has left at the end of each day. Using the trend line, how many comic books should Sammy have left after 6 days?

• 15

• 10

• 30

• 8

Which scatter plot could have a trend line whose equation is y = 3x + 10?

• A

• B

• C

• D

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What type of association does this graph show?

• Positive

• negative

• none

• all of the above