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  : Dec 28 2002, 07:06 PM


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=(*(Yi,Ri)-Y)/Y
- , 1 . .
- ( / 0 1 )
X(Yi,Ri)- . (.)
n
X= å Yi*Ri
i-1
Y- .(.)
i-
Yi= ( (.)+ (.)+ ()+ )* i- .

Ri- .

Ri-const .
Ri= / .


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