10. Civil engineers believe that W, the amount of weight (in units of 1000 pounds) that a...
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10. Civil engineers believe that W, the amount of weight (in units of 1000 pounds)
that a certain span of a bridge can withstand without structural damage resulting, is normally distributed with mean 400 and standard deviation 40.
Suppose that the weight (again, in units of 1000 pounds) of a car is a random variable with mean 3 and standard deviation 3. How many cars would have to be on the bridge span for the probability of structural damage to exceed .1?
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Anurag Agrawal
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