Mean Median Mad

The mean and mean absolute deviation (MAD) is show for 3 datasets. Choose the dataset with the least variability.

• Mean: 5.6

  MAD: 2.1

• Mean: 2.8

  MAD: 1.1

• Mean: 3.7

  MAD: 2.3

The mean and mean absolute deviation (MAD) is show for 3 datasets. Choose the dataset with the most variability.

• Mean: 10

  MAD: 3.2

• Mean: 4

  MAD: 2.3

• Mean: 6

  MAD: 4.1

Group A and Group B were randomly sampled from the same population. Which statements below are true? Select all that apply.

• Group A has a greater median than Group B

• Group A has a greater range than Group B

• Group A has greater variability than Group B

• Group B has a greater median than Group A

• You cannot tell which group has the greater median based on the picture.

Kerron gathers the heights of a random sample of 6th graders and 7th graders and displays the data in box plots. Which statement below is true?

• The median of the 7th grade sample is greater than the 6th grade sample.

• The 7th grade sample has greater variability.

• The ranges of both data samples are equivalent.

• The median of the 6th grade sample is greater than the 7th grade sample.

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Roger's median score?

• 127

• 155

• 156

• 193

What value is the lower quartile?

• 66

• 58

• 60

• 64

Which box and whisker plot has the highest median?

• Top plot

• Bottom plot

Which of the following is the mean absolute deviation for the set of data?
2.50 3.75 1.25 2.25 3.00

• 3.3

• 0.66

• 2.50

• 2.55

What is the mean absolute deviation of 13, 14, 17, 28, and 28?

• 6.4

• 8.6

• 4.6

• 6.3

An amusement park recorded the ages of the first ten people to ride a new attraction. The ages were as follows: 11, 34, 16, 18, 22, 30, 18, 20, 15, and 16. What is the mean absolute deviation of this data set?

• 20

• 5.2

• 18

• 4.8

• 5.75