It is estimated that 45% of households own a riding lawn mower. A sample of 12 households is studied. What is the mean number of households who own a riding
Mower?
A) 12
B) 1.7234
C) 2.97
D) 5.4

Question

Quizplus · Accepted Answer

The mean number of households owning a riding lawn mower can be calculated by multiplying the total number of households in the sample (12) by the probability that any given household owns a riding lawn mower (0.45). Thus, the mean is 12 * 0.45 = 5.4.

It Is Estimated That 45% of Households Own a Riding