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A set of electric toothbrush prices are normally distributed with a mean of87 dollars and a standard deviation of 8 dollars. What proportion of electric

A set of electric toothbrush prices are normally distributed with a mean of87 dollars and a standard deviation of 8 dollars.

What proportion of electric toothbrush prices are between 104.60 dollars and 108.20 dollars? You may round your answer to four decimal places.

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