Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.

Lesson: Mean Absolute Deviation

In this lesson, we will learn how to find and interpret the mean absolute deviation.

Sample Question Videos

05:18

Worksheet • 20 Questions • 1 Video

Q1:

At an art gallery, Jill hung 14 paintings, Kevin hung 6 paintings, Laurie hung 9 paintings, Meg hung 8 paintings, and Matt hung 9 paintings. Find the mean absolute deviation of the number of paintings hung.

Q2:

The following table shows the number of classes taught by each teacher in the math department at a high school. Find the mean absolute deviation (MAD) of the data set rounded to the nearest hundredth if necessary.

Teacher Ramy Sally Amir Rania
Number of Classes 2 4 2 5

Q3:

Calculate the mean absolute deviation of 15, 5, 17, 7, 14, 5, 15, and 20. Round your answer to the nearest tenth if necessary.

Q4:

The line plot represents the scores of students in a mathematics test. Which of the following has the greatest mean absolute deviation (MAD)?

  • AC
  • BB
  • CD
  • DA

Q5:

Which pair of data sets is most likely to have the greatest number of values in common?

  • A Data set 𝐴 has a mean of = 1 7 , data set 𝐵 has a mean of = 1 4 , and both sets have a MAD of 9.
  • B Data set 𝐴 has a mean of = 1 2 , data set 𝐵 has a mean of = 1 6 , and both sets have a MAD of 9.
  • C Data set 𝐴 has a mean of = 1 2 , data set 𝐵 has a mean of = 9 , and both sets have a MAD of 2.
  • D Data set 𝐴 has a mean of = 1 0 , data set 𝐵 has a mean of = 1 6 , and both sets have a MAD of 6.
  • E Data set 𝐴 has a mean of = 1 2 , data set 𝐵 has a mean of = 1 6 , and both sets have a MAD of 8.

Q6:

The following line plots show the heights, in inches, of different students. Which of them has the smallest mean absolute deviation (MAD)?

  • Aplot D
  • Bplot C
  • Cplot B
  • Dplot A

Q7:

Find the mean absolute deviation of the data in the pictograph shown.