Class IX Math
Sample Paper for Probability
1. A coin is tossed 150 times and it is found that head comes 1115 times and tail 35 times. If a coin tossed at random, what is the probability of getting
2. A bag-I contains four cards numbered 1, 3, 5 and 7 respectively. Another bag-II contains here cards numbered 2, 4 and 6 respectively. A card is drawn at random from each bag. Find the probability that the sum of two cards drawn is 9.
3. A bag contains 7 white, 3 red and 4 black balls. A ball drawn at random. Find the probability that it is a red or a black ball.
4. In a single throw of two dice, find the probability of getting a total of 8.
5. One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting a face card.
6. Two unbiased coins are tossed once. What is the probability of getting exactly one head?
7. What is the probability of a sure event?
8. How many faces a common die has?
9. When a die is thrown once, what can be the greatest possible score?
10. If two dice are thrown together, then what must be the greatest possible score?