Find probability that american spent more per year on books

Reference no: EM13117937

For a specific year, Americans spent an average of $71.12 for books. Assume the variable is normally distributed. If the standard deviation of the amount spent on books is $8.42, find these probabilities for a randomly selected American. Put answer in percent form.

a. He or she spent more than $60 per year on books.

Reference no: EM13117937

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