United Package Service, Inc., delivers small parcels to business addresses in the Greater Detroit area. To learn more about the demand for its service, UPS has collected the following data on the number of deliveries per week for a sample of six customers: 3 4 5 6 2 4 A. Calculate the mean, median and mode measures of central tendency for the number of deliveries per week. Which measure does the best job of describing central tendency for this variable? B. Calculate the range, variance and standard deviation for this data series. Which measure does the best job of describing the dispersion in this variable?