There are three coins. One is a two headed coin (having head on both faces), another is a biased coin that comes up heads 75% of the time and third is an unbiased coin. One of the three coins is chosen at random and tossed, it shows heads, what is the probability that it was the two headed coin?

There are three coins one is a two-headed coin having head on both faces , another is a biased , coin that coines up tails 25% of the times and third is an unbiased coin. One of the three coins is chosen at random and tossed, it shows head what is the probability that it was a two-headed coin ?

There are three coins. One is two headed coin (having head on both faces),another is biased coin that comes up heads 75% of the times and third is also a biased coin that comes up tail 40% of the times. One of the three coins is chosen at random and tossed, and it shows heads. What is the probability that it was the two headed coin?

There are three coins, one is a biased coin that comes up with tail 60% of times the second is also a biased coin that comes up head 75% of times and the third is a unbiased coin. One of the three coins is chosen at random and tossed, if it showed head. What is the probability that it was the unbiased coin?

There are three coins. One is a coin having tails on both faces, another is a biased coin that comes up tails on both faces, anoter is a biased coin that comes up tails 70% of the time and the third is an unbiased coin. One of the coins is chosen at random and tossed, it shows tail. Find the probability that it was a coin with tail on both the faces.

A bag contains three coins, one of which has head on both sides, another is a biased coin that shows up heads 90% of the time and the third one is an unbiased coin. A coin is taken out from the bag at random and tossed. If it is shows up a head, then the probability that it is the unbiased coin, is:

There are three coins . One con has tails on both side. Another is a biased coin that shows tails in 75% cases. The third coins is unbiased.. One of the three coins is chosen at random and tossed it showed tail. What is the probability that it is first coin.

Two fair coins are tossed. What is the probability of getting at the most one head?

In tossing three coins at a time, what is the probability of getting at most one head ?