Suppose you take a 30 question test, multiple choice, with each question having 4 choices. A,...

Suppose you take a 30 question test, multiple choice, with each question having 4 choices. A, B, C, D. If you randomly guess on all 30 questions, what is the probability you pass the exam (correctly guess on 60% or more of the questions)? Assume none of the questions have more than one correct answer. b) what the expected number of correct guesses? what is the standard deviation? c) what would be considered an unusual number of correct guesses on the test?

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orchestra answered 1 year ago

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