The tail length of the raccoon population is normally distributed with a mean of 18 cm and a standard

deviation of 5 cm.

Determine the following:

a)The percent of the population with a tail length less than 10 cm.

b)The percent of the population with a tail length greater than 20 cm.

c)The percent of the population with a tail length greater than 30 cm.

d)The percent of the population with a tail length between 10 cm and 24 cm.