SOLUTION: Please help me find the answer: Scores on a test are normally distributed with a mean of 76 and a standard deviation of 6. Find the probability that a randomly selected student sco
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Question 820382: Please help me find the answer: Scores on a test are normally distributed with a mean of 76 and a standard deviation of 6. Find the probability that a randomly selected student scored below 64. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Please help me find the answer: Scores on a test are normally distributed with a mean of 76 and a standard deviation of 6. Find the probability that a randomly selected student scored below 64.
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z(64) = (64-76)/6 = -12/6 = -2
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P(x < 64) = P(z < -2) = P(z < -2) = normalcdf(-100,-2) = 0.0228
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Cheers,
Stan H.
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