Having a hard time answering this one. to five year old girls, Elise and Joslin, have been training to run a 1 mile race. Alyse's 1 mile time A is approximately normally distributed with a mean of 13.5 minutes and a standard deviation of 2.5 minutes. Jocelyn's 1 mile time J is approximately normally distributed with a mean of 12 minutes and a standard deviation of 1.5 minutes. Assuming A and J are independent random variables, what is the probability that Alyse has a smaller time than Joslin in a 1 mile race on a randomly selected day?

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