A real estate company is interested in the ages of home buye

A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was years old, with a standard deviation of years. Suppose that these measures are valid for the population of all home buyers. Complete the following statements about the distribution of all ages of home buyers.

Solution

mu = 46 and sigma = 9

a) Atleast 75%

b) Atleast 89%

c) apprxy 95%

(d) Suppose that the distribution is bell-shaped. According to the empirical rule, approximately 68% of the home buyers\' ages lie between _46-9___years and__46+9___ years.

i.e. between 37 and 55