Probability: The Study of Randomness SA student takes a four-question quiz. Lett

Question

Probability: The Study of Randomness SA student takes a four-question quiz. Letting R = right answer and w = wrong answer, the sample space of possible outcomes may be written as follows: RRRR RRRW RRWR RWRR WRRR RRWW RWRW RWWIR WRWR WWRR WRRW RWww wRWW wwRW wwwR wwww Let A = the event that the student answers at most one question correctly. What outcomes in the sample space are elements of A? B. Rwww, wRWW, wWRw, wwwR, wwww. C. Rwww, WRWW, wWRW, WWWR, RRWW, RWRW RWWR, WRWR, WWRR, WRRW, RRRW, RRWR, RWRR, Statistics 1About This Book I Catalog l Order a Book I Contact Us 13

Explanation / Answer

When we say atmost 1 correct answer we mean either 1 or 0 correct answer which is satisfied by option B.

Therefore, the answer is option B.

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