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Year 8 maths · W.9 · Data and sampling

Compare two groups using medians and the MAD

Subtract the two medians, then divide by the MAD.

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  1. Team A has a median score of 28 and Team B has a median score of 38. Both teams have a mean absolute deviation of 5. The difference between the medians is how many times the MAD?

    Answer: 2

  2. Team A has a median score of 26 and Team B has a median score of 30. Both teams have a mean absolute deviation of 4. The difference between the medians is how many times the MAD?

    Answer: 1

  3. Team A has a median score of 24 and Team B has a median score of 28. Both teams have a mean absolute deviation of 2. The difference between the medians is how many times the MAD?

    Answer: 2

Tip: Subtract the two medians, then divide by the MAD.

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