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Should it be $\operatorname{Var}X$ or $\operatorname{D}X$ ? Moreover I think that $\xi$, $\zeta$ is more appropriate for random variables then $X$, $Y$. What do you think?
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Should it be $\operatorname{Var}X$ or $\operatorname{D}X$ ? Moreover I think that $\xi$, $\zeta$ is more appropriate for random variables then $X$, $Y$. What do you think? --[[User:Nikita2|Nikita2]] ([[User talk:Nikita2|talk]])
  
 
: Yes, $\operatorname{Var}X$, as noted in the "Comments". About $\xi$, $\zeta$ I am neutral; also $X$, $Y$ are OK with me. --[[User:Boris Tsirelson|Boris Tsirelson]] ([[User talk:Boris Tsirelson|talk]]) 08:55, 23 February 2013 (CET)
 
: Yes, $\operatorname{Var}X$, as noted in the "Comments". About $\xi$, $\zeta$ I am neutral; also $X$, $Y$ are OK with me. --[[User:Boris Tsirelson|Boris Tsirelson]] ([[User talk:Boris Tsirelson|talk]]) 08:55, 23 February 2013 (CET)

Revision as of 09:19, 23 February 2013

Should it be $\operatorname{Var}X$ or $\operatorname{D}X$ ? Moreover I think that $\xi$, $\zeta$ is more appropriate for random variables then $X$, $Y$. What do you think? --Nikita2 (talk)

Yes, $\operatorname{Var}X$, as noted in the "Comments". About $\xi$, $\zeta$ I am neutral; also $X$, $Y$ are OK with me. --Boris Tsirelson (talk) 08:55, 23 February 2013 (CET)
How to Cite This Entry:
Variance. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Variance&oldid=29479