Question 3.181

68. Computational Formula for the Population Variance and Standard Deviation: Wins in Baseball.

The following table provides the number of wins for all the teams in the American League East Division for the 2013 season, which we can consider to be a population.

146

Team Wins
Boston Red Sox 97
Tampa Bay Rays 92
Baltimore Orioles 85
New York Yankees 85
Toronto Blue Jays 74
Table 3.60: Source: www.mlb.com.

An alternative computational formula for the population variance is as follows:

  1. Use the computational formula to find the population variance for the number of wins.
  2. Use your result from (a) to find the population standard deviation for the number of wins.