Let E1 be the event denoting that M speaks truth and E2 be the event denoting that N speaks truth.Probability that both contradict each other :Probability that John speaks truth = P(J)= 3/4Probability that John lie : 1/4Probability that Cheryl speaks truth= P©= 4/5Probability that Cheryl lie : 1/5Probability that both contradict each other := (3/4) * (1/4) + (1/5) * (3/4)= 7/20
Aptitude
Topic: Probability
The probability that John speaks truth is 3/4 and the probability for Cheryl speaking truth is 4/5. What is the probability that they contradict each other when asked to speak on certain fact ?A) 3/20 B) 2/5 C) 7/20 D) 1/5 E) 3/5
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