The mean is 80, the standard deviation is 5. What number is 2.5 standard deviations above the mean? It is a normal distribtion.

asked Oct 7, 2022 58.5k views

5 votes

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6 votes

Answer:

So the final answers would be (90 > z)-P(80<z) = .47725 or 47.725%

Explanation:

WBB answered Oct 11, 2022