SOLUTION: if you have a mean of 100 and standard deviation of 15. question is what percentage of the scores are between 107.5 and 115? i get 53.28% but not sure if that makes sense

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Question 452118: if you have a mean of 100 and standard deviation of 15. question is what percentage of the scores are between 107.5 and 115? i get 53.28% but not sure if that makes sense
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if you have a mean of 100 and standard deviation of 15. question is what percentage of the scores are between 107.5 and 115? i get 53.28% but not sure if that makes sense
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Determine the z-value of 107.5 and of 115.
Then find P(z is between those two values).
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I get normalcdf(107.5,115,100,15) = 0.1499
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Cheers,
Stan H.
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