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Assume that random guesses are made for nine multiple choice questions on an SATtest, so that there are n=9 trials, each with probability of success(correct)

Assume that random guesses are made for nine multiple choice questions on an SATtest, 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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