Question

High blood pressure: A national survey reported that 30% of adults in a certain country have hypertension (high blood pressure). A sample of 20 adults is studied. Round the answer to at least four decimal places. Part 1 of 4: (a) What is the probability that exactly 6 of them have hypertension? The probability that exactly 6 of them have hypertension is (b) What is the probability that more than 7 have hypertension? (c) What is the probability that fewer than 3 have hypertension? Would it be unusual if more than 9 of them have hypertension? It would be unusual if more than 9 of them have hypertension since the probability is

          High blood pressure: A national survey reported that 30% of adults in a certain country have hypertension (high blood pressure). A sample of 20 adults is studied. Round the answer to at least four decimal places.

Part 1 of 4:
(a) What is the probability that exactly 6 of them have hypertension?

The probability that exactly 6 of them have hypertension is 

(b) What is the probability that more than 7 have hypertension?

(c) What is the probability that fewer than 3 have hypertension?

Would it be unusual if more than 9 of them have hypertension?

It would be unusual if more than 9 of them have hypertension since the probability is

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Added by Megan S.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Shannon K

07/05/2022

Step 1

The formula is P(X=k) = C(n, k) * (p^k) * ((1-p)^(n-k)), where n is the number of trials (20 in this case), k is the number of successes we want (6 in this case), p is the probability of success (0.30 in this case), and C(n, k) is the combination of n items taken Show more…

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High blood pressure: A national survey reported that 30% of adults in a certain country have hypertension (high blood pressure). A sample of 20 adults is studied. Round the answer to at least four decimal places. Part 1 of 4: (a) What is the probability that exactly 6 of them have hypertension? The probability that exactly 6 of them have hypertension is (b) What is the probability that more than 7 have hypertension? (c) What is the probability that fewer than 3 have hypertension? Would it be unusual if more than 9 of them have hypertension? It would be unusual if more than 9 of them have hypertension since the probability is

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