Question: Problem 4.48 The natural recovery rate for a certain disease is 40%. A new drug is developed and the manufacturer claims that it boosts the

Problem 4.48 The natural recovery rate for a certain disease is 40%. A new drug is developed and the manufacturer claims that it boosts the recovery rate to 80%. Two hundred patients are given the drug. What is the probability that at least 100 patients recover if:

(a) the drug is worthless?

(b) it is really 80% effective as claimed?

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