Question Paper
Class / Subject: Class 10 (ICSE) · Mathematics
Chapter: Chapter 25 — Chapter 25: 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 range of probability values? [1]
(A) 0 to 1
(B) 0 to 100
(C) 1 to 10
(D) Negative numbers only
3. What operation combines independent 'and' events? [1]
(A) Multiplication
(B) Addition
(C) Subtraction
(D) Division
4. What operation often combines 'or' events? [1]
(A) Addition
(B) Multiplication
(C) Subtraction
(D) Division
5. What is a sample space? [1]
(A) All possible outcomes of an experiment
(B) Only favourable outcomes
(C) A single outcome
(D) Nothing specific
6. What is the probability of rolling a 4 on a die? [1]
(A) 1/6
(B) 1/4
(C) 4/6
(D) 1/2
7. What does probability help us do? [1]
(A) Make informed decisions and predictions
(B) Confuse decisions
(C) No reason
(D) Only for tests
8. Why learn about combined events in probability? [1]
(A) To solve more complex probability problems
(B) No reason
(C) It's not useful
(D) Only for tests
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 range of probability values? [1]
(A) 0 to 1
(B) 0 to 100
(C) 1 to 10
(D) Negative numbers only
11. What operation combines independent 'and' events? [1]
(A) Multiplication
(B) Addition
(C) Subtraction
(D) Division
12. What operation often combines 'or' events? [1]
(A) Addition
(B) Multiplication
(C) Subtraction
(D) Division
13. What is a sample space? [1]
(A) All possible outcomes of an experiment
(B) Only favourable outcomes
(C) A single outcome
(D) Nothing specific
14. What is the probability of rolling a 4 on a die? [1]
(A) 1/6
(B) 1/4
(C) 4/6
(D) 1/2
15. What does probability help us do? [1]
(A) Make informed decisions and predictions
(B) Confuse decisions
(C) No reason
(D) Only for tests
16. Why learn about combined events in probability? [1]
(A) To solve more complex probability problems
(B) No reason
(C) It's not useful
(D) Only for tests