The Heights of 18-Year-Old Men Are Approximately Normally Distributed with Mean

question 40

Multiple Choice

The heights of 18-year-old men are approximately normally distributed with mean 68 inches and standard deviation 3 inches. What is the probability that the average height of a sample of ten 18-year-old men will be between 67 and 68 inches? $$\bar { x }$$

• A)0.3531
• B)0.6469
• C)0.1469
• D)0.7062
• E)0.3961

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