A box contains three coins: two fair coins and one fake two-heeaded coin is picked randomly from the box and tossed. If it happens to be head, what is the probability that it is the two headed coin?

If fair coin is tossed 10 times find the probability that it shoes heads(i)5 times

A coin is tossed once. What is the probaility of getting a head ?

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

A coin is tossed twice. What is the probability of getting exactly one head ?

A fair coin is tossed three times . The probability that there is atleast one tail is

4 coins are tossed . Th e probability that they are all heads is

A purse contains 4 copper coins, 3 silver coins and the second purse contains 6 copper coins and 2 silver coins. If a coins is taken out of any purse then what is the probability that it is a copper coin.

A fair coin is tossed 9 times.The probability that it shows exactly 5 heads is…….