Question

Assume that females have pulse rates that are normally distributed with a mean of μ=72.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts​ (a) through​ (c) below.

a. If 1 adult female is randomly​ selected, find the probability that her pulse rate is between 66 beats per minute and 78 beats per minute. The probability=

​(Round to four decimal places as​ needed.)

b. If 16 adult females are randomly​ selected, find the probability that they have pulse rates with a mean between

66 beats per minute and 78 beats per minute. The probability =

Answer 1

a.

The probability = 0.3688

b.

The probability = 0.9452