> I am interested in the following expression and conditions under which it > equals 0: > E(x*y*z) where x,y and z are random variables and E(.) denotes expectation. > > Here, x and y have mean 0 and the correlation between x and y is also zero. > > Are these two conditions *sufficient* to ensure that E(x*y*z) = 0?
No. Example: let Z=X*Y. -- To reply by e-mail, change "deadspam" to "home" ================================================================= Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =================================================================