Question

Two months ago, the mean daily rainfall in a local city was 9.4 cm. The mean absolute deviation was 3.5 cm. Last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm.
Which statement about the rainfall is true?

More rain fell two months ago than last month.

About the same amount of rain fell two months ago as last month.

Last month, the amount of rain that fell each day varied about the same as the month before.

Last month, the amount of rain that fell each day varied less than the month before.

Answer 1

The actual answer is D. The amount of rain that fell each day varied less than the month before.

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Answer 2

The statement that is true about rain fall is not Last month, the amount of rain that fell each day varied about the same as the month before. The answer in this question is not Last month, the amount of rain that fell each day varied about the same as the month before.