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| − | P(A=1,C=1) = P(A=1) . P(C=1) = p.P(A=1,B=0) = p^2.(1-p) (1) | + | P(A=1,C=1) = P(A=1) . P(C=1) = p.{P(A=1,B=0)+P(A=0,B=1) = 2.p^2.(1-p) (1) |
| − | P(A=1,B=0) = P(A=1) . P(B=0) = p.(1-p) | + | P(A=1,B=0) = P(A=1) . P(B=0) = p.(1-p) (2) |
Since, (1) & (2) are not equal to each other, A & C are not | Since, (1) & (2) are not equal to each other, A & C are not | ||
independent of each other when bits are biased. | independent of each other when bits are biased. | ||
Revision as of 15:28, 16 September 2008
A B
P(A=1) = p P(B=1) = p
P(A=0) = 1-p P(B=0) = 1-p
P(A=1,C=1) = P(A=1) . P(C=1) = p.{P(A=1,B=0)+P(A=0,B=1) = 2.p^2.(1-p) (1)
P(A=1,B=0) = P(A=1) . P(B=0) = p.(1-p) (2)
Since, (1) & (2) are not equal to each other, A & C are not independent of each other when bits are biased.
