46. The daily high and low temperatures for 20 cities follow (USA Today, May 9, 2000).

a. Prepare a stem-and-leaf display for the high temperatures.

b. Prepare a stem-and-leaf display for the low temperatures.

c. Compare the stem-and-leaf displays from parts

(a) and (b), and make some comments about the differences between daily high and low temperatures.

d. Use the stem-and-leaf display from part

(a) to determine the number of cities having a high temperature of 80 degrees or above.

e. Provide frequency distributions for both high and low temperature data.