A banker commutes daily from his apartment to his midtown office. The average time for a one-way trip is 20 minutes, wit

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A banker commutes daily from his apartment to his midtown office. The average time for a one-way trip is 20 minutes, wit

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A Banker Commutes Daily From His Apartment To His Midtown Office The Average Time For A One Way Trip Is 20 Minutes Wit 1
A Banker Commutes Daily From His Apartment To His Midtown Office The Average Time For A One Way Trip Is 20 Minutes Wit 1 (60.78 KiB) Viewed 80 times
A banker commutes daily from his apartment to his midtown office. The average time for a one-way trip is 20 minutes, with a standard deviation of 4.8 minutes. Assume the trip times to be normally distributed. (a) If the office opens at 9:00 A.M. and the banker leaves his apartment at 8:45 A.M. daily, what percentage of the time is he late for work? (b) Find the probability that 2 of the next 4 trips will take at least 1/2 hour.
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