Basic Probability Comments
Comments
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@Cart, I added text that explains if an exact answer is needed for the question or if a 'math answer' (like 1/4 or 10!) is good too.
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same as last problem
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You don't specify that the first coin is replaced which would influence the probability of selection of the unbiased coin.
Cart Reed
Dec 5, 7:59 PMguys, 1/4 and 25% are both correct and were marked as incorrect. Either provide more detail on format for answers, or make the evaluation function smarter.