Coffees Temperature 17988 40 13995 52 36330 33 43604 33 33938 40 18920 54 39957 35 3647 52 25795 29 30049 30 39804 36 25127 42 52633 2 52515 15 41819...

The temperature in December in Buffalo , New York , is often below 40 degrees Fahrenheit (4 degrees Celsius). Not surprisingly, when the National 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 he can manage inventories more efficiently. The number of cups of coffee sold during 50 games played in December in Buffalo were recorded. The results are in file Xr04-84.b) Determine the variance and standard deviation.