FUSA-express is a small express delivery company with hubs in Los Angeles, CA, Denver, CO; Dallas, TX; Saint Louis, MO; Chicago, IL, Memphis, TN; White Plains, NY; Raleigh, NC; Tampa, FL; and Philadelphia, PA. Unlike UPS and FedEx, FUSA-Express specializes in delivering large cargo (100 lbs-to-2 tons) in less than 1-week. Recently they did a 2-week study sampling delivery times from Los Angeles to Philadelphia. The following table lists the number of days it takes to deliver goods from Los Angeles to Philadelphia. Given this data, determine the mean delivery time, variance and standard deviation of the delivery time, and the probability of a delivery occurring in four or fewer days. Week-1 2 +3+ 3 3 ~ 236 4 4 2 Week-2 4 -3 ~ ~ 35 & 3 43 2 2 4

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