SOLUTION: How do you solve this question? The IQ scores of a distribution is subject to the normal distribution with the mean X=105 and standard deviation s= 15. What is the percentage (like
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Question 357550: How do you solve this question? The IQ scores of a distribution is subject to the normal distribution with the mean X=105 and standard deviation s= 15. What is the percentage (likelihood) that an IQ score is lower than 135? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The IQ scores of a distribution is subject to the normal distribution with the mean X=105 and standard deviation s= 15. What is the percentage (likelihood) that an IQ score is lower than 135?
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z(135) = (135-105)/15 = 2
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Percent(x < 135) = Percent(z < 2) = normalcdf(-100,2) = 0.9773
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Cheers,
Stan H.
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