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At the end of a trading day, the natural logarithm of the price of stock A...

At the end of a trading day, the natural logarithm of the price of stock A will have a normal distribution with mean 30 and standard deviation 30 and the natural logarithm of the price of stock B will have a normal distribution with mean 40 and standard deviation 40. The two prices are independent random variables. Calculate the probability that the price of A will exceed that of B.

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