Scatterplot

A group of friends recorded the time it took to ride their bikes around the park.  This scatter plot shows their results with the line of best fit.  Which is closest to the number of minutes it would take to complete 9 laps?

• 4

• 5

• 6

• 7

Based on the line of best fit for the scatter plot, which of the following amounts is closest to the cost of a 120-minute phone call?

• $10

• $12

• $15

• $20

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

• 65

• 92

• 70

• 76

A researcher gathered data to predict the number of new types of plants (y) that will be in a state park after x years.  After making a scatter plot of the data, she determined the equation of a line of best fit to be
y = 0.25x + 8
Based on the equation, what is the number of new types of plants that will be in the park after 24 years?

• 8

• 14

• 32

• 64

Tags

CCSS.HSF.LE.B.5

Which scatter plot shows a linear association between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.F.A.3

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

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

What are the coordinates of the outlier?

• (9,1)

• (0,3)

• (1,9)

• There is not an outlier.

What type of relationship exists between the admission price and the number of visitors? Chose the best answer

• Positive linear association

• negative linear association

• no association

• nonlinear association

What is a scatterplot?

Choose the best definition.

• A graph with a bunch of dots.

• A graph that has points plotted that form a linear relationship

• A display of points that shows the relationship between two sets of data.

• A nonlinear graph.

Identify any outliers on this graph.

• There are no outliers on this graph.

• (6,2)

• (2,6)

• (5,14) and (1,2)