Question 3 Suppose that the height, in inches, of a 22-year-old man is a normal random variable with mean 71 and variance 6.25. 1. What percentage of 22-year-old man are over 74 inches tall? 2. What percentage of 22-year-old men in the 72-inch club (no one below 72 inches) are over 77 inches? 3. There are ten 22-year-old men in the 72-inch club. What’s the probability that more than 8 of them are over 74 inches?(You can write down the answer with scientific notation) 4. For the last question, what assumptions are you making?
Question 3 Suppose that the height, in inches, of a 22-year-old man is a normal random variable with mean 71 and variance 6.25. 1. What percentage of 22-year-old man are over 74 inches tall? 2. What percentage of 22-year-old men in the 72-inch club (no one below 72 inches) are over 77 inches? 3. There are ten 22-year-old men in the 72-inch club. What’s the probability that more than 8 of them are over 74 inches?(You can write down the answer with scientific notation) 4. For the last question, what assumptions are you making?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question 3
Suppose that the height, in inches, of a 22-year-old man is a normal random variable with mean 71 and variance 6.25.
1. What percentage of 22-year-old man are over 74 inches tall?
2. What percentage of 22-year-old men in the 72-inch club (no one below 72 inches) are over 77 inches?
3. There are ten 22-year-old men in the 72-inch club. What’s the
4. For the last question, what assumptions are you making?
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VIEWStep 3: Determine the percentage of 22-year-old men in the 72-inch club are over 77 inches.
VIEWStep 4: Determine the probability that more than 8 of them are over 74 inches.
VIEWStep 5: Determine the assumptions used in previous sub-part.
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