A person plays a game of tossing a coin thrice. For each head, he is given Rs 2 by the organiser of the game and for each tail, he has to give Rs 1.50 to the organiser. Let X denotes the amount gained or lost by the person. Show that X is a rando

A person plays a game of tossing a coin thrice. For each tail, he is given Rs.3 by the organiser of the game and for each head, he has to give Rs.2 to the organiser. Let X denote the amount gained or lost by the person. Show that X is a random variable and exhibit it as a function on the sample space of the experiment.

A boy tosses faiir coin 3 times. If he gets Rs 2X for X heads, then his expected gain equals to Rs…..

A person sold two steel almirahs for Rs. 1980 each. On one he gained 10% while on the other he lost 10% . In the bargain he

A person sells two machines at Rs .396 each.On one he gains 10% and on the other he loses 10%.His profit or loss in the whole transaction is:

A fair coin is tosed 3 times. A person receives "Rs. "X^(2) if he gets X number of heads in all. His expected gain is

A person sold a chair at a profit of 13% . Had he sold it for Rs. 607.50 more, he would have gained x% If the cost price of the chair is Rs. 3750, then the value of x is:

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

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

Study the information below and answer questions based on it. Four sisters Suvarna, Tara, Uma and Vibha are playing a game such that the loser doubles the money of each of the other player. They played four games and each sister lost one game in alphabetical other. At the end of fourth game each sister had Rs 32. what was the amount with Uma at the end of the second round?