Mathematics, 09.12.2020 22:10, Imagine2013

According to Information Please Almanac, 80% of adult smokers started smoking before turning 18 years old. Suppose 10 smokers that are 18 or older are randomly selected and the number of smokers who started smoking before the age of 18 is recorded. Find the probability that exactly 8 of them started smoking before 18 years of age

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According to Information Please Almanac, 80% of adult smokers started smoking before turning 18 year...