, , . .
, , .
Y ,
.
Y Z=XY, Y. Z Y.
1 | 2 | y1 | y2 | |||
1 | 2 | py1 | py2 |
Z=XY | 1*y1 | 1* y2 | 2*y1 | 2* y2 |
1*py1 | 1*py2 | 2*py1 | 2*py2 |
X Y Z=X+, Y. Z .
1 | 2 | y1 | y2 | |||
1 | 2 | py1 | py2 |
Z=X+Y | 1+y1 | 1+y2 | 2+y1 | 2+y2 |
1*py1 | 1*py2 | 2*py1 | 2*py2 |
V ( - , - ). . .
Ï
0.5 | 0.5 | 0.7 | 0.3 |
Z=XY
Z=XY | 1*1 | 1*0 | 0*1 | 0*0 | Z | |||
0.5*0.7 | 0.5*0.3 | 0.5*0.7 | 0.5*0.3 | 0.35 | 0.65 |
Z=X+Y
Z=X+Y | 1+1 | 1+0 | 0+1 | 0+0 | Z | ||||
0.5*0.7 | 0.5*0.3 | 0.5*0.7 | 0.5*0.3 | 0.35 | 0.5 | 0.15 |
N