(5.2)3b

In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of

69.4

inches and a standard deviation of

3.0

inches. A study participant is randomly selected. Complete parts (a) through (d) below.

Question content area bottom

Part 1

(a) Find the probability that a study participant has a height that is less than

68

inches.

The probability that the study participant selected at random is less than

68

inches tall is

0.32040.3204.

(Round to four decimal places as needed.)

Part 2

(b) Find the probability that a study participant has a height that is between

68

and

71

inches.

The probability that the study participant selected at random is between

68

and

71

inches tall is

enter your response here.

(Round to four decimal places as needed.)