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Check our blood pressure: In a recent study, the Centers for Disease Control and prevention reported...

Check our 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 80.8 and a standard deviation of 10.2.

(a) What proportion of women have blood pressures lower than 69?

(b) What proportion of women have blood pressures between 70 and 90?

(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 62? Round the answers to four decimal places.

Math   Statistics-And-Probability   
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