# Standard Deviation

The average thickness of books on a library shelf is 8.3 centimenters. The standard deviation is 0.6 centimeter. If 20% of the books are oversized, find the minimum thickness of the oversized books on the library shelf. Assume the variable is normally distributed.

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#### Solution Summary

The expert finds the minimum thickness of the oversized books on the library shelf. The variable is normally distributed.

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