The following data represent the commuting distances for employees of the Pay-and-Carry Department store.
a. The personnel manager for Pay-and-Carry would like you to develop a frequency distribution and histogram for these data.
b. Develop a stem and leaf diagram for these data.
c. Break the data into three groups (under 3 miles, 3 and under 6 miles, and 6 and over). Construct a pie chart to illustrate the proportion of employees in each category.

d. Referring to part c, construct a bar chart to depict the proportion of employees in each category.