0oitu by TGI Friday's, 1000 different adult respon- usts were randomly selected without replacement, and each was asked if they investigate den an social media before meeting them. Responses consist of "yes" or “no." Binomial Probability Formula. heln understand the rationale for the binomial probability formula. In Exercises 13 and 14, answer the questions designed to 13 Guessing Answers Standard tests, such as the SAT, ACT, or Medical College Admission Pest (MCAT), typically use multiple choice questions, each with five possible answers (a, b, c, d e), one of which is correct. Assume that you guess the answers to the first three questions. a. Use the multiplication rule to find the probability that the first two guesses are wrong and the third is correct. That is, find P(WWC), where W denotes a wrong answer and C denotes a correct answer. b. Beginning with WWC, make a complete list of the different possible arrangements of two wrong answers and one correct answer, then find the probability for each entry in the list. c. Based on the preceding results, what is the probability of getting exactly one correct answer when three guesses are made? 14. News Source Based on data from a Harris Interactive survey, 40% of adults say that they prefer to get their news online. Four adults are randomly selected. continued

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