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Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 trials l, each with probability

Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 trials l, each with probability of success (Correct ) by p=0.25 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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