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Justin and Kevin both ski the same run frequently

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Justin and Kevin both ski the same run frequently. Justin completes the run with an average time of 42.7 minutes and a standard deviation of 1.6 minutes. Kevin completes the run with an average time of 41.4 minutes and a standard deviation of 2.7 minutes. Assume both distributions are Normal. What is the probability that Kevin will complete the run faster than Justin? Answer as a probability (between 0 and 1) to four decimal places.