SOLUTION: On a 10 question multiple-choice test, where each question has 5 answers. What is the probability of obtaining exactly each number 0 through 10 answers correctly by guessing?

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Hi,

 p(correct answer) = .2,   n = 10

P(x = 10) = binompdf(n, p, x-value) = binompdf(10, .2, 10) = 0.0000001