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8 April, 08:27

assume that random guesses are made for 9 multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success (correct) given by p=0.6. find the indicated probability for the number of correct answers. find the probability that the number x of correct answers is fewer than 4.

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  1. 8 April, 09:20
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    though this looks difficult. It's easier than you think. Just not visible until its visible. If I knew the answer, i would have told you ... sorry.
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