Q11 In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionis

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answerhappygod
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Q11 In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionis

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Q11
In a mid-size company, the distribution of the number of phone
calls answered each day by each of the 12 receptionists is
bell-shaped and has a mean of 56 and a standard deviation of 9.
Using the empirical rule (as presented in the book), what is the
approximate percentage of daily phone calls numbering between 47
and 65?

Do not enter the percent symbol.
ans = %
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