SOLUTION: Assume a normally distributed population with µ = 80 and σ = 5. What proportion of scores in the distribution is between 72 and 90?

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Question 657383: Assume a normally distributed population with µ = 80 and σ = 5. What proportion of scores in the distribution is between 72 and 90?
Answer by stanbon(75887) About Me  (Show Source):
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Assume a normally distributed population with µ = 80 and σ = 5. What proportion of scores in the distribution is between 72 and 90?
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1st: Find the z-values of 72 and 90
2nd: Find the area between those two z-values.
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Ans: normalcdf(72,90,80,5) = 0.9225
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cheers,
Stan H.