Mathematics, 03.12.2021 19:50 NetherisIsTheQueen

A bridge crossing a river can support at most 85,000 lbs. Suppose that the weights of automobiles using the bridge have mean weight 3,200 lbs and standard deviation 400 lbs. How many automobiles can use the bridge simultaneously so that the probability that the bridge is not damaged is at least 0.9

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A bridge crossing a river can support at most 85,000 lbs. Suppose that the weights of automobiles us...