Multiple-choice questions each have five possible answers (a, b, c, d, e), one of which is correct. Assume that you guess the answers to three such questions. a. Use the multiplication rule to find P(WCW), where C denotes a correct answer and W denotes a wrong answer. P(WCW) = (Type an exact answer.) b. Beginning with WCW, make a complete list of the different possible arrangements of one correct answer and two wrong answers, then find the probability for each entry in the list P(WCW) - see above P(CWW) = P(WWC) = (Type exact answers.) c. Based on the preceding results, what is the probability of getting exactly one correct answer when three guesses are made? (Type an exact answer.)

Multiple-choice questions each have five possible answers (a, b, c, d, e), one of which is correct. Assume that you guess the answers to three such questions. a. Use the multiplication rule to find P(WCW), where C denotes a correct answer and W denotes a wrong answer. P(WCW) = (Type an exact answer.) b. Beginning with WCW, make a complete list of the different possible arrangements of one correct answer and two wrong answers, then find the probability for each entry in the list P(WCW) - see above P(CWW) = P(WWC) = (Type exact answers.) c. Based on the preceding results, what is the probability of getting exactly one correct answer when three guesses are made? (Type an exact answer.)

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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