Suppose that the income of the population of the city of Seattle is normally distributed and varies approximately from 0 to 6 million;what is the estimated standard deviation?
A)Insufficient information to estimate
B)2 million
C)3 million
D)square root of 6 million
E)1 million

Question

Quizplus · Accepted Answer

In a normal distribution, the range is about 6 standard deviations (3 on each side of the mean). Given the range is 6 million, the standard deviation is approximately 1 million.

Suppose That the Income of the Population of the City