Mathematics, 15.04.2021 20:00, joslyn96

15. The pH measurements of water specimens from various locations along a given river basin are Normally distributed, with mean 8 and standard deviation 0.3. You take water specimens from four randomly selected locations on this river basin. What is the probability that the mean pH measurement of these four specimens is greater than 8.2

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15. The pH measurements of water specimens from various locations along a given river basin are Norm...