CBSE Class 10 Probability MCQs – Classical Probability and Simple Events
CBSE Class 10 Probability MCQs – Classical Probability & Simple Events
Class: 10 | Subject: Mathematics
Chapter 14: Probability
Board: CBSE Board Examination (Strictly Based on Latest NCERT Curriculum)
1. Classical probability is defined as:
Correct Answer: A
Explanation: Classical probability P(E) = Number of favourable outcomes / Total number of equally likely outcomes.
Explanation: Classical probability P(E) = Number of favourable outcomes / Total number of equally likely outcomes.
2. Probability of a sure event is:
Correct Answer: B
Explanation: A sure event always occurs, so probability = 1.
Explanation: A sure event always occurs, so probability = 1.
3. Probability of an impossible event is:
Correct Answer: B
Explanation: Impossible event cannot occur, so probability = 0.
Explanation: Impossible event cannot occur, so probability = 0.
4. A coin is tossed. Probability of getting a head is:
Correct Answer: B
Explanation: Total outcomes = 2 (H, T); favourable = 1; so P(H) = 1/2.
Explanation: Total outcomes = 2 (H, T); favourable = 1; so P(H) = 1/2.
5. A die is thrown. Probability of getting 3 is:
Correct: A
Explanation: Total outcomes = 6; favourable = 1.
Explanation: Total outcomes = 6; favourable = 1.
6. Probability always lies between:
Correct: B
Explanation: 0 ≤ P(E) ≤ 1.
Explanation: 0 ≤ P(E) ≤ 1.
7. If P(E) = 0.4, then P(not E) =
Correct: A
Explanation: P(E) + P(not E) = 1.
Explanation: P(E) + P(not E) = 1.
8. In a pack of 52 cards, probability of getting a red card:
Correct: A
Explanation: 26 red cards out of 52.
Explanation: 26 red cards out of 52.
9. Complement of event E is:
Correct:A
Explanation: Denoted by E'.
Explanation: Denoted by E'.
10. If P(E)=1, event is:
Correct:A
Explanation: Sure event.
Explanation: Sure event.
11. If P(E)=0, event is:
Correct:B
Explanation: Impossible event.
Explanation: Impossible event.
12. Total probability of all outcomes equals:
Correct:A
Explanation: Sum equals 1.
Explanation: Sum equals 1.
13. Getting even number on die probability:
Correct:A
Explanation: 3 favourable (2,4,6).
Explanation: 3 favourable (2,4,6).
14. If two coins tossed, total outcomes:
Correct:C
Explanation: HH, HT, TH, TT.
Explanation: HH, HT, TH, TT.
15. Probability of getting at least one head (2 coins):
Correct:A
Explanation: 3 favourable out of 4.
Explanation: 3 favourable out of 4.
16. If event certain, complement is:
Correct:A
Explanation: Complement of sure event is impossible.
Explanation: Complement of sure event is impossible.
17. If event impossible, complement is:
Correct:A
Explanation: Complement of impossible is sure.
Explanation: Complement of impossible is sure.
18. Probability of odd number on die:
Correct:A
Explanation: 3 favourable.
Explanation: 3 favourable.
19. If P(E)=0.2, then P(E')=
Correct:A
Explanation: 1 − 0.2 = 0.8.
Explanation: 1 − 0.2 = 0.8.
20. Probability is based on:
Correct:A
Explanation: Classical probability assumes equally likely outcomes.
Explanation: Classical probability assumes equally likely outcomes.
