What is the probability that his waist size is less than 38

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The waist size of Canadian males is reported to be normally distributed with a mean of 36.33 inches and a standard deviation of 4.02 inches.

a. A Canadian man is randomly selected. What is the probability that his waist size is less than 38 inches?

b. What is the waist size that is exceeded by 90% of North American males?

c. A Canadian male is randomly selected. What is the probability that his waist size is exactly 36.33 inches?

d. 10 Canadian men are randomly selected. What is the probability that at most 8 of them has waist size over 38 inches?

Reference no: EM132152080

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