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Started By
Message
Should the denominator of the Variance formula be n or (n-1)?
Posted on 10/14/14 at 12:07 am
Posted on 10/14/14 at 12:07 am
OR
Which is correct between the two?
Posted on 10/14/14 at 12:10 am to euphemus
One is population, the other sample...
Posted on 10/14/14 at 12:12 am to euphemus
The limit does not exist.
Posted on 10/14/14 at 12:12 am to euphemus
Lonely Masturbators Board
Posted on 10/14/14 at 12:13 am to Spock's Eyebrow
quote:
One is population, the other sample...
This. Probably you want the sample variance.
Posted on 10/14/14 at 12:14 am to euphemus
From a practical standpoint, if the n is large enough it doesn't matter.
Posted on 10/14/14 at 12:18 am to euphemus
n is population
n-1 is sample
n-1 is sample
Posted on 10/14/14 at 12:19 am to KosmoCramer
im taking econometrics and I should know this
Im pretty positive its n-1
Im pretty positive its n-1
Posted on 10/14/14 at 12:21 am to LSUGent
What would you say if I told you it was....both...?
Posted on 10/14/14 at 12:27 am to KosmoCramer
quote:
What would you say if I told you it was....both...?
Posted on 10/14/14 at 12:29 am to euphemus
If its sample then n-1
Population is just n
Population is just n
Posted on 10/14/14 at 12:38 am to euphemus
n is for the population variance of the sample
n-1 eliminates bias if your mean is unknown
You can also have n+1, but it's been a couple of years since I had statistics and I dont really remember what that corrects for.
n-1 eliminates bias if your mean is unknown
You can also have n+1, but it's been a couple of years since I had statistics and I dont really remember what that corrects for.
This post was edited on 10/14/14 at 12:42 am
Posted on 10/14/14 at 12:39 am to euphemus
Man, that shite looks like an alien language to me. But then again I suck at math so yes I'm a peasant.
Posted on 10/14/14 at 1:17 am to euphemus
Unfortunately even with this thread you can't even wooo Jet, so give it up bro
Posted on 10/14/14 at 1:29 am to euphemus
"N"
Tempting
Won't fall for this again
Tempting
Won't fall for this again
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