Scatter Plot Association Practice

What kind of associaton does this scatter plot show?

• positive

• negative

• none

Answer explanation

The points on this scatter plot appear to be going in a downward direction. This direction indicates a negative association. As one variable increases, the other decreases.

This scatter plot shows a (a)   association.

Answer explanation

This scatter plot shows points moving in the upward direction. This indicates a positive association. As one variable increases, the second variable also increases.

This scatter plot shows a cluster of points ranging from 90-110 on the x axis & 60-100 on the y axis.

• True

• False

Which point is an outlier on the graph?

• (6,10)

• (13,55)

• (16,20)

• (16,90)

Answer explanation

The outlier is the point that is far away from other points on the scatter plot.

Which of the following describes the association of this scatter plot?

• linear

• nonlinear

Tags

CCSS.8.F.A.3

What type of association does this graph show?

Answer explanation

You can not clearly see and upward or downward trend on this scatter plot. This is because there is no association between the two variables.

Select the statement that is TRUE about this scatter plot. Read each choice carefully.

• An outlier exists at the point representing a salary of approximately $62,000.

• There is a negative linear association here.

• There is a positive linear association here.

• The smallest school district has an average student/teacher ratio of approximately 8.6.

Which pair of variables would you expect to have a NEGATIVE association? Read carefully.

• The amount of money you make in a week & the number of hours you work

• A person's height & the number of pets they own

• the speed a person drives to work & the total time it takes to get to work

• the number of friends you have& the number of birthday parties you attend in a year

Answer explanation

A negative association means one variable increase while the other decreases. If you increase how fast you drive to work, the time spent driving will decrease.

The scatter plot shows the amount of storage space left and the number of movies stored on the Cloud. Which statement best describes the association between the two?

• As # of movies increase, the amount of storage left increases.

• There is no association.

• As # of movies increase, amount of storage left decreases.

• As # of movies increase, amount of storage stays the same.

The scatter plot shows the number of social media followers a person has and the number of pets they own. Which statement best describes the association shown?

• As # of pets increase, the # of social media followers increase.

• As # of pets decrease, # of social media followers increase.

• There is no association.