Mathematics, 03.04.2020 02:11 shainaanderson24
Assume the defect length of corrosion defect in a pressurized steel pipe is normally distributed with mean value 30 mm and standard deviation 7.8 mm.
a. What is the probability that defect length is at most 20 mm? Less than 20 mm?
b. What is the 75th percentile of the defect length distribution?
c. What is the 15th percentile of the defect length distribution?
d. What values separate the middle 80% of the defect length distribution from the smallest 10% and the largest 10%?
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Assume the defect length of corrosion defect in a pressurized steel pipe is normally distributed wit...
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