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QUESTION
The probability of guessing right on a 4-option multiple choice item is 1/4 or 0.25. If a quiz has 10 questions. Determine the: mean = (exact answer, no rounding) variance = (exact answer, no rou
The probability of guessing right on a 4-option multiple choice item is 1/4 or 0.25. If a quiz has 10 questions. Determine the:
mean = (exact answer, no rounding)
variance = (exact answer, no rounding)
standard deviation = (round to one decimal place)
