You may need to use the appropriate appendix table or technology to answer this question. The number of adults in the United States who smoke has declined greatly. In 2005 more than 20% of adults in the United States smoked, but this declined to about 12.5% in 2020. Consider a group of 340 adults surveyed in the year 2020, and use the normal approximation of the binomial distribution to answer the questions below. (a) What is the expected number of adults who smoke? Correct: Your answer is correct. adults (b) What is the probability that fewer than 40 smoke? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (c) What is the probability that from 45 to 50 smoke? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (d) What is the probability that 55 or more smoke? (Round your answer to four decimal places.) Incorrect: Your answer is incorrect