Question

In: Statistics and Probability

The waist circumference of males 20-29 years old is approximately normally distributed, with mean 92.5 cm...

The waist circumference of males 20-29 years old is approximately normally distributed, with mean 92.5 cm and standard deviation 13.7 cm.

(a) Use the normal model to determine the proportion of 20- to 29-year-old males whose waist circumference is less than 100 cm.

(b) What is the probability that a randomly selected 20- to 29-year-old male has a waist circumference between 80 and 100 cm?

(c) Determine the waist circumferences that represent the middle 90% of all waist circumferences.

Please list ti-84 calculator functions

Solutions

Expert Solution

a)0.70796

b)0.5272

c) Between 69.97 and 115.03

orchestra answered 1 year ago
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