Finding the probability that a randomly selected cat will, Ask an Expert

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Let X= annual medical cost for a dog and Y= annual medical cost for a cat. Suppose that X and Y are both normally distributed with the means and standard deviations given above. Letting K = Y - X, find P(K>0). In other words, you are finding the probability that a randomly selected cat will cost more than a randomly selected dog in terms of their annual medical costs. (Hint: K also has a normal distribution with a certain mean and standard deviation.)

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