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 deviation 9.5

(a) What proportion of women have blood pressures lower than 62?

(b) What proportion of women have blood pressures between 69 and 87?

(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.