Help with math

Anonymous
timer Asked: Dec 6th, 2015

Question description

(Section 6.2) Male and female height in America The heights of adult men in America are normally distributed, with a mean of 69.1 inches and standard deviation of 2.65 inches. Exercises 25 through 28 use this information. Round your answers as percentages to the nearest whole number.

25. Tall. What percentage of adult males in America are over 6 feet tall?

26. Short. What percentage of adult males in America are under 5 feet 7 inches tall?

27. Heights of women. The heights of American women between the ages of 18 and 24 are approximately normally distributed. The mean is 64.1 inches, and the standard deviation is 2.5 inches. What percentage of such women are over 5 feet 9 inches tall?

28. Dancing. It is sometimes said that women don’t like to dance with shorter men. To get a dancing partner, a 6-foot-tall woman draws from a hat the name of an adult American male. What is the probability that he will be as tall as she? Give your answer as a percentage rounded to the nearest whole number.

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