For the sample data in Exercises 17–22, do the following:

  1. Calculate the sample variance.
  2. Compute the sample standard deviation.
  3. Interpret the sample standard deviation.

Question 3.134

21. The following sample is taken from the petit larceny data in Exercise 15.

Precinct Petit larcenies
1 2014
6 1555
9 1607
14 4551
17 823

3.2.21

(a) 2,046,275 petit larceny cases squared (b) 1430.48 petit larceny cases (c) For this sample of New York precincts, the typical difference between a precinct's number of petit larceny cases and the mean number of petit larceny cases is 1430.48 petit larceny cases.