Talk:Variance
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Wow. This (and Mean, and Standard Deviation) are horrible. Undecipherable. Tons of variables being used without explanation. The grammar is awful. It reads like it was ripped from one of those 100 page math books from the turn of the 19th century--absolutely useless without the lectures.
- I was concerned when I read the words above, since I dislike bad grammar and overly complicated verbiage (see my recent editing of counterexample). But then I looked at the page, and it looks as if any intelligent undergraduate would be able to follow it without much effort. No "variables" are unexplained (and I have often been upset to find Wikipedia articles in which mathematical notation is unexplained; I'm a stickler about such things). But do go ahead and improve it if you can. And this article is quite light on the use of "variables"; I don't understand why you say "tons". (I have not looked at mean and standard deviation today.) Michael Hardy 18:06, 5 Apr 2004 (UTC)
Variance as analogous to moment of inertia!?!?
I removed this aside someone had put at the bottom, as it was just plain silly.
- ... and I've put it back, since it OBVIOUSLY makes sense. The mathematical analogy between the two is clear. Whether it is in some way fruitful is not clear to me at this moment; maybe someone can add something. Michael Hardy 22:48, 15 Apr 2005 (UTC)
- I clarified the sentence.--Patrick 00:19, 16 Apr 2005 (UTC)