On Sun, 06 Feb 2000 15:41:47 GMT, "Howard S. Hoffman"
<[EMAIL PROTECTED]> wrote:
>(a) If you make a scatterplot of all possible values of U and V you will
>discover that for every value of U the mean value of V is 0.
>(b) In other >words, the slope of the regression of U on V is zero.
>(c) This, for me is proof that U and V are independent.
(a) is saying that E(V|U) is independent of U (in this case=0);
(b) is saying that V and U are not linearly correlated
and is a weaker statement than (a)
(c) is not true in this case, given the standard meaning of
independent, even if (a) and (b) are.
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