# Talk:Standard deviation

### From Conservapedia

The reason for this change is that the std. dev. is a true statistic since it is a function of a variable which has a probability distribution associated with it. Qwestor 10:39, 8 December 2007 (EST)

## mistake

the last formula needs a square sign in the numerator RJJensen 20:58, 18 January 2009 (EST)