SOLUTION: Please help me figure this problem:
a normal distribution has the mean of 40 and the standard deviation 6. If a score is randomly selected, what is the probability that the scor
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a normal distribution has the mean of 40 and the standard deviation 6. If a score is randomly selected, what is the probability that the scor
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Question 658646: Please help me figure this problem:
a normal distribution has the mean of 40 and the standard deviation 6. If a score is randomly selected, what is the probability that the score is greater than 43? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a normal distribution has the mean of 40 and the standard deviation 6. If a score is randomly selected, what is the probability that the score is greater than 43?
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Your measuring stick is the z-distribution.
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z(43) = (43-40)/6 = 1/2
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P(x > 43) = P(z > 1/2) = normalcdf(1/2,100) = 0.3085
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cheers,
Stan H
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