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5 February, 22:58

A true false test has 8 questions. What is the probability of guessing the correct answers to all of the questions?

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  1. 5 February, 23:01
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    Each individual question has a prob of 1/2 of being correct so its

    (1/2) (1/2) ... (1/2) - - - (8 times)

    = (1/2) ^8

    = 1/256

    so the answer is 1/256
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