問題詳情

12.(a) If two fair dice are rolled 4 times, what is the probability of at least one 6 (on either die) in exactly two of these 4 rolls? (5 points)(b) Suppose that, on average, in every two pages of a book there is one typographical error.What is the probability of at least one error on a specific page of the book? (5 points)

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