Different results in calculating SD of 2 numbers
Ron Michael <ron_michael70 at yahoo.com> writes:
Can anyone tell me why I am getting different results in calculating SD of 2 numbers ?
(1.25-0.95)/2
[1] 0.15
Because this is not the SD? Try
(1.25-0.95)/sqrt(2)
:-)
sd(c(1.25, 0.95))
[1] 0.2121320 # why it is different from 0.15?
Bj?rn-Helge Mevik