Problem 4.140 (1.5 points) (Use data set 4.140) The temperature in December in Buffalo, New York, is often below 40 degrees Fahrenheit (4 degree Celsius). Not surprisingly, when the National Football League Buffalo Bills play at home in December, coffee is a popular item at the concession stand. The concession manager would like to acquire more information so that he can manage inventories more efficiently. The number of cups of coffee sold during 50- games played in December in Buffalo was recorded. a. Determine the mean and median. b. Determine the variance and stand deviation.