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QUESTION
a) In a 15-item true false examination, what is the probability that a student who guesses on each question will get at least 10 correct answers?
a) In a 15-item true false examination, what is the probability that a student who guesses on each question will get at least 10 correct answers?
b) If another student has a 0.8 probability of correctly answering each question, what is the probability that this student will answer at least 12 questions correctly?
