Question: Coin A is unbiased, the probability that a head will result when B is tossed is 2 / 3 ; the probability that a head

Coin A is unbiased, the probability that a head will result when B is tossed is

2 / 3

; the probability that a head will result when C is tossed is

1 / 3 .

If one of the coins, chosen at random is tossed three times and it gives a total of two heads and one tail then find the probability that the chosen coin was A

.

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