Check your blood pressure: In a recent study, the Centers for Disease Control and Prevention reported that diastolic blood pressures of adult women in the United States are approximately normally distributed with mean

80.1

and standard deviation9.9

.(a) What proportion of women have blood pressures lower than

71

?(b) What proportion of women have blood pressures between

72

and92

?(c) A diastolic blood pressure greater than

90

is classified as hypertension (high blood pressure). What proportion of women have hypertension?(d) Is it unusual for a woman to have a blood pressure lower than

63

?Round the answers to four decimal places.

Part 1 of 4

The proportion of women who have blood pressures lower than71

is

.

Part 2 of 4

The proportion of women who have blood pressures between72

and92

is

.

Part 3 of 4

The proportion of women who have hypertension is

.

Part 4 of 4

It

(Choose one)

unusual because the probability of a woman having blood pressure lower than63

is

.