Although studies continue to show smoking leads to significant health problems, 20% of adults in a country smoke. Consider a group of 150 adults.   (b) What is the probability that fewer than 20 smoke? Use the normal approximation of the binomial distribution to answer this question. (c) What is the probability that from 35 to 40 smoke? Use the normal approximation of the binomial distribution to answer this question. (d) What is the probability that 45 or more smoke? Use the normal approximation of the binomial distribution to answer this question.

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