What is the variance for sample data

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A student who lives far away from the university has to travel to the university by bus on weekdays. He recorded his trips 5 times during the last month. The time (in minutes) was 38, 33, 36, 47, and 41. What is the variance for this sample data___

On Saturdays, cars arrive at a car wash at the rate of 6 cars per hour. Using the Poisson distribution, the probability that five or six cars will arrive during the next hour is ____

Reference no: EM132950570

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