Difference between revisions of "Talk:Variance"
From Encyclopedia of Mathematics
m (mathematical expectation symbol?) |
(Yes, E is widely used) |
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What about mathematical expectation symbol? How should we type it? I found this $\mathbb{E}$ but I think is should be like E. --[[User:Nikita2|Nikita2]] ([[User talk:Nikita2|talk]]) 06:01, 25 February 2013 (CET) | What about mathematical expectation symbol? How should we type it? I found this $\mathbb{E}$ but I think is should be like E. --[[User:Nikita2|Nikita2]] ([[User talk:Nikita2|talk]]) 06:01, 25 February 2013 (CET) | ||
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| + | : Yes, E ($\mathsf{E}$, $\mathrm{E}$, $E$) are widely used. Also $\mathbb{E}$ is used. --[[User:Boris Tsirelson|Boris Tsirelson]] ([[User talk:Boris Tsirelson|talk]]) 07:44, 25 February 2013 (CET) | ||
Revision as of 06:44, 25 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)
What about mathematical expectation symbol? How should we type it? I found this $\mathbb{E}$ but I think is should be like E. --Nikita2 (talk) 06:01, 25 February 2013 (CET)
- Yes, E ($\mathsf{E}$, $\mathrm{E}$, $E$) are widely used. Also $\mathbb{E}$ is used. --Boris Tsirelson (talk) 07:44, 25 February 2013 (CET)
How to Cite This Entry:
Variance. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Variance&oldid=29485
Variance. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Variance&oldid=29485