Mathematics, 26.03.2021 18:40 alize123213
Suppose there are 12 multiple choice questions in an English class quiz. Each question has five possible answers, and only one of them is correct. Find the probability of having four or less correct answers if a student attempts to answer every question at random. Find mean and variance of the random variable. (Ans: 92.7%). Find the mean and variance of the distribution.
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Suppose there are 12 multiple choice questions in an English class quiz. Each question has five poss...
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