Standard deviation in Oracle Reports
482132Apr 13 2006 — edited Apr 15 2006Can anybody tell me if the standard deviation function Oracle reports provides us uses the formula
sd= sqrt(nE(x*x) -((E*x)*(E*x))/n(n-1))
where
sd=non-weight standard deviation
n= is the total number of values
E= summation
x= calculated avarage of the values
In other words is it presenting me the non-weighted standard devieation or not?
marcos