Statistics ITU Board 2080
What is conditional probability? Three roads A, B and C lead away from a jail. A prisoner escaping from the jail selects a road at random. If road A is selected, the probability of escaping is 1/10.…
5What is conditional probability? Three roads A, B and C lead away from a jail. A prisoner escaping from the jail selects a road at random. If road A is selected, the probability of escaping is 1/10. Similarly for road B it is 1/8 and for road C it is 1/5.
i) What is the probability that the prisoner will succeed in escaping?
ii) If the prisoner has succeeded in escaping, what is the probability that he had chosen the road A?
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