Cheyanne7802 Cheyanne7802

20-08-2018
Mathematics

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Normal distribution has a mean of 101 and a standard deviation of 10. find probability that value selected at random is at most 121

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sqdancefan sqdancefan

20-08-2018

A probability app or table will tell you the probability of Z ≤ 2 is 0.97725.

_____

Your value of 121 is 2 * 10 = 2 standard deviations above the mean of 101.

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