A large study of the heights of 550 adult men found that the mean height was 71 inches tall. The standard deviation was 7 inches. If the distribution of data was normal, what is the probability that a randomly selected male from the study was between 50 and 85 inches tall? Use the 68-95-99.7 rule (sometimes called the Empirical rule or the Standard Deviation rule). For example, enter 0.68, NOT 68 or 68%. Answer = (Write your answer in decimal form, not percentage form. For example, if your percentage is 99%, enter 0.99, not 99. Round your answer to three decimal places.) Caution: Using tables or Excel for this may produce a wrong answer. Use the 68-95-99.7 rule.
A large study of the heights of 550 adult men found that the mean height was 71 inches tall. The standard deviation was 7 inches. If the distribution of data was normal, what is the probability that a randomly selected male from the study was between 50 and 85 inches tall? Use the
Answer = (Write your answer in decimal form, not percentage form. For example, if your percentage is 99%, enter 0.99, not 99. Round your answer to three decimal places.)
Caution: Using tables or Excel for this may produce a wrong answer. Use the 68-95-99.7 rule.
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