Question Paper
Class / Subject: Class 8 (ICSE) · Mathematics
Chapter: Chapter 23 — Chapter 23: Probability
Time Allowed: 32 minutes
Max Marks: 16
1. What is the probability formula? [1]
(A) Favourable outcomes ÷ total outcomes
(B) Total outcomes ÷ favourable outcomes
(C) Favourable + total outcomes
(D) Favourable - total outcomes
2. What is the probability of heads on a fair coin? [1]
(A) 1/2
(B) 1/4
(C) 1
(D) 0
3. What is the probability of rolling an even number on a die? [1]
(A) 1/2 (3/6)
(B) 1/6
(C) 1/3
(D) 2/6 only, not simplified
4. What is the probability of rolling a 6 on a die? [1]
(A) 1/6
(B) 1/2
(C) 1/3
(D) 6/6
5. What does a probability of 1 mean? [1]
(A) The event is certain
(B) The event is impossible
(C) The event might happen
(D) Nothing specific
6. What does a probability of 0 mean? [1]
(A) The event is impossible
(B) The event is certain
(C) The event might happen
(D) Nothing specific
7. Why use probability? [1]
(A) To make informed predictions
(B) To confuse decisions
(C) No reason
(D) Only for tests
8. What is the probability of picking a red ball from 2 red and 3 blue balls? [1]
(A) 2/5
(B) 3/5
(C) 2/3
(D) 1/5
9. What is the probability formula? [1]
(A) Favourable outcomes ÷ total outcomes
(B) Total outcomes ÷ favourable outcomes
(C) Favourable + total outcomes
(D) Favourable - total outcomes
10. What is the probability of heads on a fair coin? [1]
(A) 1/2
(B) 1/4
(C) 1
(D) 0
11. What is the probability of rolling an even number on a die? [1]
(A) 1/2 (3/6)
(B) 1/6
(C) 1/3
(D) 2/6 only, not simplified
12. What is the probability of rolling a 6 on a die? [1]
(A) 1/6
(B) 1/2
(C) 1/3
(D) 6/6
13. What does a probability of 1 mean? [1]
(A) The event is certain
(B) The event is impossible
(C) The event might happen
(D) Nothing specific
14. What does a probability of 0 mean? [1]
(A) The event is impossible
(B) The event is certain
(C) The event might happen
(D) Nothing specific
15. Why use probability? [1]
(A) To make informed predictions
(B) To confuse decisions
(C) No reason
(D) Only for tests
16. What is the probability of picking a red ball from 2 red and 3 blue balls? [1]
(A) 2/5
(B) 3/5
(C) 2/3
(D) 1/5