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27. In an NIH survey of U.S. men, the heights for the 20-29 age group were normally distributed with a mean of 69.4 inches
27. In an NIH survey of U.S. men, the heights for the 20-29 age group were normally distributed with a mean of 69.4 inches and a standard deviation of 2.9 inches. a) What percentage of men had heights below 65 inches? b) What percentage of men had heights above 72 inches? c) What percentage of men had heights between 68 inches and 71 inches? d) What was the height of a man at the 70th percentile?
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Elementary Statistics
Authors: Mario F. Triola
12th Edition
0321836960, 978-0321836960
