Question: In a recent study, the Centers for Disease Control reported that diastolic blood pressures (in mmHg) of adult women in the United States are approximately

In a recent study, the Centers for Disease Control reported that diastolic blood pressures (in mmHg) of adult women in the United States are approximately normally distributed with mean 80.5 and standard deviation 9.9.

a. What proportion of women have blood pressures lower than 70?

b. What is the 80th percentile of blood pressures?

c. A woman has a blood pressure of 84. What percentile is her blood pressure on?

d. A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What proportion of women have hypertension?

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