High blood pressure: A national survey reported that 33% of adults in a certain country have hypertension (high blood pressure}. A sample of 23 adults is studied. Round the answer to at least four decimal places. (a) What is the probability that exacdy 4 of them have hypertension? The probability that exactly 4 of them have hypertension is E] . (b) What is the probability that more than 6 have hypertension? The probability that more than 6 have hypertension is E] . (c) What is the probability that fewer than 4 have hypertension? The probability mat fewer than 4 have hypertension is E] . E (d) Would it be unusual if more than 8 ofthem have hypertension? It (Choose one) Y be unusual if more than 8 of them have hypertension since the probability is E] . E