An Introduction To Mean Absolute Deviation (MAD)

Which Class?

Work Time

Which Class?

To better understand whether the mean is a good representation of a data set, you can calculate a measure called the mean absolute deviation (MAD).

The MAD is a measure of how spread out the values in a data set are from the mean. The greater the MAD is, the farther away the data are, on average, from the mean.

  • Which class do you think will have the highest MAD?
  • Which class do you think will have the lowest MAD?
  • Explain your answers.

Hint:

  • Will most of the data with a low MAD be close to the mean or far away?
  • Will most of the data with a high MAD be close to the mean or far away?
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