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

In a recent study, the Centers for Disease Control reported that diastolic blood pressures (in $\mathrm{mmHg}$ ) 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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