yazminmoran1022 yazminmoran1022

23-10-2022
Mathematics

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Ten water samples are taken from a river; readings of contaminants in each sample are shown: 6, 8, 3, 7, 8, 7, 5, 4, 6, 9. The samples are known to be a normal distribution with mean 7.5 and standard deviation is 2.1.

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