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A manager commutes daily from his home to his office. The average time for a one-trip is 35 minutes, with a standard deviation of

A manager commutes daily from his home to his office. The average time for a one-trip is 35 minutes, with a standard deviation of 4.3 minutes. Assume the distribution of trip times to be normally distributed. What is the probability that a trip will take more than 40 minutes?

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