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

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

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User Researcher
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1 Answer

6 votes

Answer:

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

Explanation:

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User WBB
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