Question: The following is a list of values from the Consumer Price Index (CPI) from the last 15 years:

100, 100, 99, 101, 103, 103, 102, 103, 104, 106, 107, 107, 108, 107, 108

a. Produce a stem-and-leaf display of the data.

b. Find the sample mean, median, and mode (if any) of this data set.

c. Find the range, sample variance, and sample standard deviation.

d. Produce a frequency chart of this data using five classes of width 2 with first endpoint 98.5.

e. Exhibit the corresponding histogram for the classes in part d.

f. Exhibit also the cumulative frequency graph for the chart in part d.