Chapter 12, Problem 27T

Season Statistics in Major League Baseball The tables below show the 2013 statistics on games won for all three divisions of both major baseball leagues. In each case,

$n=$ number of teams in the division,

$\bar{x}=$ average (mean) number of games won, and

$s=$ standard deviation of number of games won.

American League
EastDivision	CentralDivision	WestDivision
$n=5$	$n=5$	$n=5$
$\bar{x}=86.6$	$\bar{x}=80.0$	$\bar{x}=77.4$
$s=8.7$	$s=14.4$	$s=17.8$
National League
East	Central	West
Division	Division	Division
$n=5$	$n=5$	$n=5$
$\bar{x}=78.2$	$\bar{x}=84.2$	$\bar{x}=79.8$
$s=13.1$	$s=13.5$	$s=7.3$
Refer to the preceding tables for Exercises 25-28.

Refer to the preceding tables for Exercises 25-28.

Find (to the nearest tenth) the average number of games won for all East Division teams.