Scatterplot and Data Display

The list below shows the number of text messages that five students sent from their phone during a school day.

34, 12, 49, 8, 2

Find the mean absolute deviation of the list of numbers.

• 21

• 72

• 16.4

• 14.8

The scatterplot below shows the number of years of experience of 8 different wedding photographers and the number of weddings they photographed over the last year.

Based on the scatterplot, what would be the best prediction of the number of weddings that a photographer with 7 years of experience would photograph in a year?

• 41

• 57

• 68

• 75

The graph below shows the number of cats owned by 5 different individuals and the number of pounds of cat food each individual buys each month. Choose the statement that best describes the data in the scatter plot.

• The data appears linear with positive association.

• The data appears linear with negative association.

• The data appears linear with non-linear association.

• The data appears linear with no association.

Tags

CCSS.8.F.A.3

The scatter plot shows different people’s ages and the number of states they have visited. Based on the trend line shown, how many states would you predict someone who is 40 years old has visited?

• 12 states

• 20 states

• 15 states

• 10 states

Which best describes the main difference between scatter plots X and Y shown below?

• Both X and Y show non-linear relationships.

• X is non-linear while Y is negative linear.

• X is negative linear while Y is positive linear

• X shows no association while Y is negative linear

Tags

CCSS.8.F.A.3

Elijah plays soccer and is also in advanced math. The scatter plot shows the number of hours he spent for each of the last 10 weeks practicing soccer and studying for math. Which is a correct conclusion based on the scatter plot?

• As the hours spent practicing soccer increases, the hours spent studying math increases.

• As the hours spent practicing soccer decreases, the hours spent studying math decreases.

• As the hours spent practicing soccer increases, the hours spent studying math decreases.

• There is no association between the hours spent practicing soccer and the hours spent studying math.

The numbers below represent the speeds of the last 6 vehicles that a police officer recorded: 68, 72, 78, 59, 73, 70.

Find the mean absolute deviation of the numbers.

• 70

• 5.2

• 14

• 4.3

Which scatter plot shows a LINEAR relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3