A coin is tossed three times. Given that at least one head appears, what is the probability that exactly two heads will appear?

If 10 coins are tossed, find the probability that exactly 5 heads appears.

A coin is tossed until a head appears or until it has been tossed three times. Given that 'head' does not occur on the first toss, what is the probability that the coin is tossed thrice?

In one toss of three coins, at least one head appears. Find the probability of getting three heads.

A coin is tossed three times. Find the probability of getting at least 2 heads

If three fair coins are tossed,What is the probability of getting exactly two heads?

Two coins are tossed together. What is the probability of getting exactly one head.