Mathematics, 22.04.2021 23:00 kimboblack4192
Suppose you are taking the MCAT, and you randomly guess on 15 questions. Suppose each question has one correct answer of 5 possible choices (a, b, c, d, and e). Let X be the number of correct guesses in those 15 questions.
a. Is X a binomial experiment? Explain.
b. Find the probability that you get 0 correct.
c. Find the probability that you get 8 or more correct.
d. Find the probability that you get all 15 correct.
e. What is the expected number of correct guesses in 15 questions?
Answers: 2
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