A game consists of tossing a one rupee coin 3 times and noting its outcome each time. Henif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Henif will lose the game.

In a gam the entry fee is Rs5. the game consists of tossing a coin 3 times. If one or two heads show, Swetha gets her entry fee back. If she throws 3 heads, she gets double the entry fees, otherwise she will lose. For tossing a coin 3 times, find the probability that she: i] loses the entry fee ii] gets double the entry fee iii] just gets her entry fee.

Suppose, a girl throws a die. If she gets a 5 or 6 she tosses a coin three and notes the number of heads. If she gets 1 , 2, 3 or 4 she tosses a coin once an notes whether a head or tail is obtained. If she obtained exactly one head, what is the probability that she threw 1, 2, 3 or with the die ?

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 head what is the probability that it is was the two headed coin

A box contains N coins, m of wiich are fair and the rest are biased. The probability of getting a head when a fair coin is tossed is 1/2, while it is 2/3 when a biased coin is tossed. A coin is drawn from the box at random and is tossed twice. The first time it shows head and the second time it shows tail. What is the probability that the coin drawn is fair ?

A coin is tossed 8 times . The probability of getting a head three times is :

A coin is tossed 100 times and the following outcomes are recorded Head:45 times Tails:55 times from the experiment a) Compute the probability of each outcomes. b) Find the sum of probabilities of all outcomes.

A coin is tossed 3 times. The probability of getting head once and tail 2 times is