I know that since n = 3 and mu = 0. I've never used the multivariate normal distribution. My prof just derived it, but never taught us how to use it. Any help would be appreciated.
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You may think this is a multivariate problem, but it isn't Just find the distribution of where
W is a chi-squared distribution with 3 degrees of freedom. If that's true, what do I do with?
why don't you get the square root of 15.36 and do it directly? REMEMBER x^2>4 is x>2 OR x<-2. I'm not sure about this chi-square 3 thingy It's not X_1^2 +X_2^2....
So I did what you said: Can I do the following: + + and
Last edited by statmajor; Oct 7th 2009 at 05:42 PM.
Originally Posted by statmajor So I did what you said: Can I do the following: + + and no, those events are not mutually exclusive. JUST let Then figure out what the mean (0) and the variance of W is. THEN standardize and use the st normal table
Sorry to bother you again (and sound like an idiot), but I still can't figure out what what W is. It's probably something simple, but just can't get it. Sorry.
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