Milly R.

asked • 02/26/21

Central Limit Theorem

The mean serum cholesterol level of a large population of overweight children is 220 milligrams per deciliter (mg/dl), and the standard deviation is 16.3 mg/dl. Assume the serum cholesterol level variable is normally distributed.


a. If 1 child is selected, find the probability that the mean will be between 216 and 224 mg/dl.


b. If a random sample of 12 overweight children is selected, find the probability that the mean will be between 216 and 224 mg/dl.


1 Expert Answer

By:

Debra B. answered • 02/26/21

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a) 19.39%

b) 60.48%

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