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Mathematics, 20.09.2020 16:01 annabellthedivp3u9ve
For a certain online store, the distribution of number of purchases per hour is approximately normal with mean 1,200 purchases and standard deviation 200 purchases. For what proportion of hours will the number of purchases at the online store exceed 1,400 ?
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For a certain online store, the distribution of number of purchases per hour is approximately normal...
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