Question

In a certain country, the mean number of children in a household in the urban area is 5 with a standard deviation of 3. In the rural area, the mean number of children in a household is 8 with a standard deviation of 2.

1. Which area tends to have a larger number of children in the household?
2. Which area has a larger variability in the number of children in the household?

Answer 1

(a)

Rural area tends to have a larger number of children in the household because mean number of children in the household in Rural area = 8 is greater than mean number of children in the household in Urban area = 5

(b)

Urban area has a larger variability in the number of children in the household because standard deviation of number of children in the household in Urban area = 3 is greater than standard deviation of number of children in the household in Rural area = 2.