torybro123 torybro123

18-11-2022
Mathematics

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please help!!!! 50 points

The number of words per sentence in a certain book is normally distributed with a mean of 21 words and a standard deviation of 4 words.

Approximately what percent of sentences in the book are less than 13 words in length?

A. 2.5%
B. 5%
C. 47.5%
D. 87.5%

please help 50 points The number of words per sentence in a certain book is normally distributed with a mean of 21 words and a standard deviation of 4 words App class=

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