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

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.

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)?

Q5:

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

Q6:

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

Q7:

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