Mathematics, 03.11.2020 16:50 shanicet047ox9ff6
Manufacture of a certain component requires three different machining operations. Machining time for each operation has a normal distribution, and the three times are independent of one another. The mean values are 15, 30, and 20 min, respectively, and the standard deviations are 1, 2, and 1.5 min, respectively. What is the probability that it takes at most 70 min of machining time to produce a randomly selected component
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Manufacture of a certain component requires three different machining operations. Machining time for...
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