Question: A student guesses randomly on a test with 10 multiple choice questions. Each question has four possible answers: A, B, C, and D. This is

A student guesses randomly on a test with 10 multiple choice questions. Each question has four possible answers: A, B, C, and D. This is a binomial experiment.

What are p and n for this binomial distribution?

What is the probability that the student gets exactly 3 questions correct?

What is the mean number of questions a guessing student will get on this test?

What is the standard deviation of the number of correct questions?

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