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Naomi weighted 50 patients to a medical study using a scale that measures to the nearest whole pound. she then calculated the mean weight as

Naomi weighted 50 patients to a medical study using a scale that measures to the nearest whole pound. she then calculated the mean weight as 176 pounds. with a standard deviation of 12 pounds.

if the distribution is normal. what percentage of the data lies between 140 pounds and 212 pounds

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