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In studies for a​ medication, 8 percent of patients gained weight as a side effect. Suppose...

In studies for a​ medication, 8 percent of patients gained weight as a side effect. Suppose 498 patients are randomly selected. Use the normal approximation to the binomial to approximate the probability that ​(a) exactly 40 patients will gain weight as a side effect. ​(b) no more than 40 patients will gain weight as a side effect. ​(c) at least 50 patients will gain weight as a side effect. What does this result​ suggest?

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