Probability new questions and solution for 9 th class
Answers
Answer:
MCQ ON PROBABILITY CLASS 9TH
Explanation:
1. Two coins are tossed simultaneously 300 times. Either one or two heads are obtained 198 times. The probability of getting no head is
(a) 0.45
(b) 0.36
(c) 0.21
(d) 0.34
(d) 0.34
2. Two unbiased coins are tossed simultaneously. The probability of getting at least one head is
(a) 0
(b) 1/2
(c) 2/3
(d) 3/4
(d) 3/4
3. The maximum probability of an event of a trial is:
(a) 0
(b) 1
(c) Lies between 0 and 1.
(d) -1
(b) 1
4. In a sample survey of 640 people, it was found that 400 people have a secondary school certificate. If a person is selected at random, the probability that the person does not have such certificate is
(a) 0.625
(b) 0.875
(c) 0.375
(d) 0.725
(c) 0.375
5. A standard deck of 52 cards is shuffled. One card is drawn at random. The probability that the card is red or an ace is
(a) 7/13
(b) 5/15
(c) 13/7
(d) 2/13
(a) 7/13
6. In a simultaneous throw of a pair of dice, the probability of getting a sum more than 7 will be
(a) 5/12
(b) 13/12
(c) 7/12
(d) 9/12
(a) 5/12
7. Two dice are tossed. The probability of getting two 5’s is
(a) 1/18
(b) 1/6
(c) 1/36
(d) 1/2
(c) 1/36
8. In a football match, a player hits 8 goals out of 60 balls. Find the probability that the player did not hit the goal.
(a) 11/15
(b) 4/5
(c) 8/15
(d) 13/15
(d) 13/15
9. Three unbiased coins are tossed together. The probability of getting at least two heads is
(a) 3/8
(b) 1/2
(c) 1/8
(d) 1
(b) 1/2
10. One card is drawn from a well-shuffled deck of 52 cards. The probability of drawing an ace is
(a) 1/26
(b) 1/13
(c) 1/39
(d) 1/52
(b) 1/13
11. Which of the following cannot be the empirical probability of an event ?
(a) 3/2
(b) 0
(c) 2/3
(d) 1
(a) 3/2
12. A bag contains 5 red balls and some blue balls. The probability of drawing a blue ball is double that of a red ball. The number of blue balls in the bag is
(a) 5
(b) 10
(c) 20
(d) 30
(b) 10
13. A and B throw a pair of dice. If A throws 9, then B’s chance of throwing a higher number is
(a) 1/6
(b) 1/9
(c) 1/3
(d) 2/9
(a) 1/6
14. If two coins are tossed simultaneously, the probability of getting at least one tail is
(a) 3/2
(b) 3/4
(c) 1/4
(d) 1/2
(b) 3/4
15. The probability of an event of a trial is always
(a) more than 1
(b) between 0 and 1 (both inclusive)
(c) 1
(d) 0
(b) between 0 and 1 (both inclusive)
16. Three unbiased coins are tossed. What is the probability of getting at most two heads?
(a) 7/8
(b) 3/4
(c) 5/6
(d) 3/2
(a) 7/8
17. An unbiased dice is thrown. What is the probability of getting an even number or a multiple of 3?
(a) 3/2
(b) 2/3
(c) 5/4
(d) 4/3
(b) 2/3
18. A die is thrown once. The probability of getting a number 3 or 4 is
(a) 0
(b) 1
(c) 2/3
(d) 1/3
(d) 1/3
19. Two coins are tossed simultaneously. Then, the probability of getting at most one head is
(a) 2/3
(b) 3/4
(c) 1/4
(d) 1/3
(b) 3/4
20. If probability of happening of an event is 3/7, then the probability of non-happening of this event is:
(a) 2/7
(b) 4/7
(c) 0
(d) 1
(b) 4/7
21. Probability of getting 53 thursdays in a non leap year is
(a) 53/266
(b) 2/7
(c) 1/7
(d) 3/7
(c) 1/7
22. Probability of getting an even number on a die is
(a) 1/2
(b) 0
(c) 1/3
(d) 2/3
(a) 1/2