SOLUTION: The scores on a lab test are normally distributed with mean of 200. If the standard deviation is 20, find the percentage of scores above 240
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Question 756303: The scores on a lab test are normally distributed with mean of 200. If the standard deviation is 20, find the percentage of scores above 240 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The scores on a lab test are normally distributed with mean of 200. If the standard deviation is 20, find the percentage of scores above 240
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z(240) = (240-200)/20 = 2
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P(x > 24) = P(z > 2) = normalcdf(2,100) = 0.0228
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Cheers,
Stan H.
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