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?

A. More rain fell two months ago than last month.

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

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

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

Answer 1

There were 2.07 times as many people who applied in the 4th month as in the first month.

Answer 2

Answer:

Option d is right

Step-by-step explanation:

Given that 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.

Since mean absolute deviation is a measure of variation we find that last month there was less variation than the month before

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