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. [[User:Qwestor|Qwestor]] 10:39, 8 December 2007 (EST) | 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. [[User:Qwestor|Qwestor]] 10:39, 8 December 2007 (EST) |