SOLUTION: The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.72
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Question 880606: The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.72 inch? (You may need to use the standard normal distribution table. Round your answer to three decimal places.) Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.72 inch? (You may need to use the standard normal distribution table. Round your answer to three decimal places.)
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z(0.72) = (0.72-0.7)/0.02 = 0.2/0.2 = 1
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P(x > 0.72) = P(z > 1) = normalcdf(1,100) = 0.1587
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Cheers,
Stan H.
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