Assume that the red blood cell counts of women are normally distributed with a mean of 4.577 million cells per microliter and a standard deviation of 0.382 million cells per microliter. approximately what percentage of women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter? round to two decimal places. a. 16.11% b. 17.69% c. 82.26% d. 4.09%

 C. 82.26%

Explanation:

Given :  The red blood cell counts of women are normally distributed with

Let X be the random variable that represents the red blood cell counts of randomly selected woman.

Z-score :

For X=4.2

For X=5.4

Now, the probability that the women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter will be :-

Hence, 82.26% of women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter.

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