High blood pressure: A national survey reported that 31% of

Last updated: 7/8/2022

High blood pressure: A national survey reported that 31% of adults in a certain country have hypertension (high blood pressure). A sample of 21 adults is studied. Round the answer to at least four decimal places. (a) What is the probability that exactly 5 of them have hypertension? The probability that exactly 5 of them have hypertension is (b) What is the probability that more than 7 have hypertension? The probability that more than 7 have hypertension is (c) What is the probability that fewer than 4 have hypertension? The probability that fewer than 4 have hypertension is