High school textbooks dont last forever. The lifespan of all high school statistics textbooks is approximately Normally distributed with a mean of 9 years and a standard deviation of 2.5 years. What percentage of books last more than 10 years?

AGRICULTURAL STATISTICS AND ECONOMICS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

High school textbooks don’t last forever. The lifespan of all high school statistics textbooks is approximately Normally distributed with a mean of 9 years and a standard deviation of 2.5 years. What percentage of books last more than 10 years?

A	11.5%
B	34.5%
C	65.5%
D	69%

Explanation:

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FORESTRY

AGRICULTURAL STATISTICS AND ECONOMICS