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Computing the Median of a Dataset

 

Example:  Find the median of the population data listed in the table below.

 

Team

Home Runs

Team

Home Runs

1. Anaheim Angels

158

8. Minnesota Twins

164

2. Baltimore Orioles

136

9. New York Yankees

203

3. Boston Red Sox

198

10. Oakland Athletics

199

4.  Chicago White Sox

214

11.  Seattle Mariners

169

5.  Cleveland Indians

212

12.  Tampa Bay Devil Rays

121

 

6.  Detroit Tigers

139

13.  Texas Rangers

246

7.  Kansas City Royals

152

14.  Toronto Blue Jays

195

 

Press STAT and select 1: Edit. Clear L1 and enter the homerun data from above into L1. Press STAT again and highlight CALC to view the Calc Menu. Select 1:1 Var Stats and press 2nd ENTER. Notice the down arrow in the bottom left corner of the screen. This indicates that more information follows this first page. Use the blue down arrow to scroll through this information. The third item you see on the second page is the median, Med = 182.

 

 

(Note: It is not necessary to put the data in ascending order when calculation a median using the TI-83.)