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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
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 44 and a standard deviation of 10. Using the empirical rule (68 - 95 - 99.7), what is the approximate percentage of daily phone calls numbering between 24 and 64? Do not enter the percent symbol. ans =
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