1. Diastolic blood pressure are approximately normally distributed with a mean of 75 and a standard deviation of 10 a.) what is the 90th percentile of diastolic blood pressure and b.) if we consider samples of 20 patients, what is the 90th percentile of the mean diastolic blood pressure?
2. A recent study of cardiovascular risk factors reported that 30% of adults meet criteria for hypertension. If 15 aduts are assessed how many would you expect to meet the criteria for hypertention?