For example, a lower volatility stock may have an expected (average) return of 7%, with annual volatility of 5%. This would indicate returns from approximately negative 3% to positive 17% most of the time (19 times out of 20, or 95% via a two standard deviation rule).
To join the enlisted ranks, in general you must: 1  Be a U.S. citizen or Green Card holder Non-citizens must speak, read, and write English fluently. Non-citizens must currently live in the U.S. 2  Be in good health. 3  Be 17 to 40 years old (different branches have different age requirements). View a chart of age requirements by service.
The maximum enlistment age is 35. A U.S. Army website that publishes recruitment data indicates that the 20.7-year average recruitment age for active duty in 2013 is actually lower than it has been in the past 13 years.In 2007, the average age of 21.7 and in 2010 it was 21.4, according to the site. A. More than half of new enlistees in the U.S. Army are age 20 or older, a sharp rise from two decades ago, when older recruits made up just 35 percent of total Army enlistments, according to USA Today and the results of a newly released RAND Corp. study.