According to the National Health and Nutritional Examination Survey data, the distribution of weights for the population of adult males in the United States is approximately normal with mean = 172.2 lbs and standard deviation = 29.8 lbs.

a)What is the probability that a randomly selected adult male has a weight outside the range from 130 to 210 lbs?

b) What is the probability that among a random sample of five males, at least one of them will have a weight outside the range from 130 to 210 lbs?

Biostatistics