Chapter 3 Section 31 Problem 022 Find the mean median and mo

Chapter 3, Section 3.1, Problem 022

Find the mean, median, and mode for these data.

Enter the exact answers. Enter the modes in increasing order. If there is only one mode, enter it first and enter “NA” in the second answer region.

Solution

Grand Jury indictment data for Gloucester Country, New Jersey, are published every week in the Gloucester Country Times newspaper (www.nj.com/gloucester). The following data are the number of indictments for a sample of weeks selected from July 2010 through June 2011:

Data in sorted order

13

13

17

20

21

21

23

24

26

29

35

Mean = sum/n= 242/11=22

Median = middle value in the sorted data =6^th observation = 21

Mode =13 and 21

Find the mean, median, and mode for these data.

Enter the exact answers. Enter the modes in increasing order. If there is only one mode, enter it first and enter “NA” in the second answer region.

Mean = 22    indictments

Median = 21 indictments

Mode = 13 and 21    indictments