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According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a) Compute the mean and standard deviation of the random

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According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a) Compute the mean and standard deviation of the random variable X, the number of smokers who started before 18 in 100 trials of the probability experiment. (b) Interpret the mean. (c) Would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? Why? (a) HX=

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