"Nearly one-fourth of the students who try to join the military fail its entrance exam.."
Additionally "..75 percent of those aged 17 to 24 don't qualify for the military because they are physically unfit, have a criminal record or didn't graduate high school."
http://news.yahoo.com/s/ap/20101221/ap_on_re_us/us_military_exam
Additionally "..75 percent of those aged 17 to 24 don't qualify for the military because they are physically unfit, have a criminal record or didn't graduate high school."
http://news.yahoo.com/s/ap/20101221/ap_on_re_us/us_military_exam