# Stat (Alegra One Help I think)

Most popular questions and responses by Stat (Alegra One Help I think)-
## Stat

The army reports that the distribution of head circumfererence among soldiers is approximately Normal with mean 22.8 inches and standard deviation 1.1 inches. Helmets are mass produced for all except the smallest 5 % and the largest 5 % of head sizes.

*asked on September 21, 2009*