Mathematics, 29.07.2019 13:30 eileentennyson

The number of books borrowed from a library each week follows a normal distribution. when a sample is taken for several weeks, the mean is found to be 190 and the standard deviation is 30. there is a % chance that more than 250 books were borrowed in a week. ©

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The number of books borrowed from a library each week follows a normal distribution. when a sample i...