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Mathematics, 30.06.2019 15:30, tylrmannon
Suppose the number of students in a class for the business statistics program at a university has a mean of 23 with a standard deviation of 4.3. if 15 classes are selected randomly, find the probability that the mean number of students is between 20 & 30.a: 0.9966b: 0.6824c: 0.8412d: 0.9699
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