Three coins are tossed. If one of them shows tail, then find thr probability that all three coins show tail.

Three coins are tossed. If one of them shows tail, then find the probability that all three coins show tail.

If a coin be tossed n times, then find the probability that the head comes odd times.

Three coins are tossed together. Find the probability of getting exactly two heads.

Three fair coins are tossed together. Find the probability of getting ' all tails'.

Three coins are tossed. Find the probability that tail does not appear.

Three fair coins are tossed together. Find the probaility of getting (i) all heads (ii) atleast one tail (iii) atmost one head (iv) atmost two tails