Mathematics, 22.01.2021 18:30, nightwolf8999

High school text books 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 the

books last more than 10 years?

34.5%

84.5%

O O O O O

65.5%

11.5%

69%

Answers: 3

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High school text books don't last forever. The lifespan of all high school statistics textbooks is a...