Using the data in problem 27 of Chapter 2 on the Dow Jones Industrial Average:
a. Construct a stem-and-leaf diagram for net change during January 2002.
b. Construct a histogram for net change.
c. Describe the shape of the distribution.
d. Construct a stem-and-leaf diagram for percent change during January 2002.
e. Construct a histogram for percent change.
f. Describe the shape of the distribution.