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18. ‘A’ speaks truth in 80% …

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18. ‘A’ speaks truth in 80% cases and ‘B’ speaks truth in 70% case. If A throws a die and reports it is a 6 which probability concept is used to find that it is a 1. Actually a 6 a) Baye’s theorem b) Addition theorem on probability c) Both of these d) none of these 2. They contradict each other in reporting the same fact with probability. a) 39/50 b) 19/50 c) 38/50 d) none of these 3. They agree with each other a) .0056 b) 0.56 c) .0006 d) 0.62 4. Probability A tells a lie and that it is not a 6 a) ଵ ଺ b) ହ ଺ c) ସ ଷ଴ d) ସ ଷ଴ 5. Probability B tells a lie and that it is not a6 a) 1/4 b) 2/3 c) 1/3 d) 1/6

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