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benjamin (ben) 于 (Mon Mar 16 14:01:26 2009) 提到:
Hi,
If I know x is normal distributed, is that a closed form solution for
variance of Ax+Bx^2 (A,B are constant)?
Any approximation approach?
Thanks!!!
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hs (好爽) 于 (Mon Mar 16 14:05:51 2009) 提到:
定义,平方的期望 - 期望的平方
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benjamin (ben) 于 (Mon Mar 16 15:18:07 2009) 提到:
But Ax and Bx^2 are correlated, so I don't think I can ca |
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