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19 Nov 2018

21. A multiple choice exam consists of 4 questions. Each question has 5 possible answers, exactly one of which is correct. Prstě decides to pick the answer to each question at random. What is the probability that he will get precisely two correct answers? (a) .1024 (b) .9744 (c) 2048 (d) .1536 (e) .0256 (f) none of the above

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Tod Thiel
Tod ThielLv2
19 Nov 2018
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