Question: assume that random guesses are made for nine multiple choice questions on an SAT test so that there are n=9 trials each with probability of

assume that random guesses are made for nine multiple choice questions on an SAT test so that there are n=9 trials each with probability of success (correct) given by p=0.4. 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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