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Maths Puzzle
A man is known to speak truth 4 out of 5 times.He throws a die and reports that it is 5.Find the probability that it is actually 5?
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- @shweta madam.... why to take the probability of lying and non-5 chances? If we consider that we including not actually 5 probability also...
it's simply...
the probability of the man says true=4/5
the probability of 5 on a die=1/6
so the probability that he reported is actually 5=(4/5)*(1/6)=2/15 - 12 years agoHelpfull: Yes(6) No(2)
- 1/6 *4/5 + 5/6 *1/5 = 4/30 + 5/30 = 9/30
- 12 years agoHelpfull: Yes(3) No(2)
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