(1) (iii) the expected number of adults are not having side effects? the probability that more than 14 adults are not having side effects? the probability that 9 or 12 adults are not having side effects?

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A: Given Sample size n=520 Sample proportion P=0.81

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A: Given that  Sample size n =91 Favorable cases x =16 Sample proportion p^=x/n  =16/91 =0.1758