CJ a. Per capita expenditures for police protection for 20 cities are reported below for 1995 and

Question:

a. Per capita expenditures for police protection for 20 cities are reported below for 1995 and 2000. Compute a mean and standard deviation for each year, and describe the differences in expenditures for the fi ve-year period.

b. Find the Interquartile Range (Q) for both years.

Does Q change in the same way as the standard deviation?

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