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A speaks truth in 80% of the cases and B speaks truth in 60% of the cases. Find out the probability of the cases of which they are possible to contradict each other in stating similar fact.
Ans: a. Probability that A speaks Truth is: P (A=T) = .8
b. Probability that A speaks False is: P (A=F) = .2
c. Probability that B speaks Truth is: P (B=T) = .6
d. Probability that A speaks False is: P (B =f) = .4
Now probability that A and B likely to contradict is
P (A=T) x P (B =F) + P (B=T) x P (A =F)
=.8 x .4 + .6 x .2 = 32 + .12 = .44
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