Random Variables and Probability Distribution MCQs
Random Variables & Probability Distribution – MCQs with Answers & Explanations
Class: CBSE Class 12
Subject: Mathematics
Section: Probability
Topic: Random Variables and Probability Distribution MCQs
Exam Focus: CBSE Board Examinations
Subject: Mathematics
Section: Probability
Topic: Random Variables and Probability Distribution MCQs
Exam Focus: CBSE Board Examinations
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus and are ideal for CBSE Class 12 Board Examination preparation. Detailed explanations are provided for concept clarity.
1. A random variable is:
Answer: B
It maps outcomes to real numbers.
It maps outcomes to real numbers.
2. Discrete random variable takes:
Answer: A
3. Probability distribution satisfies:
Answer: A
4. Expected value is:
Answer: A
E(X)=ΣxP(x).
E(X)=ΣxP(x).
5. Variance formula:
Answer: A
6. Standard deviation is:
Answer: A
7. Continuous variable example:
Answer: B
8. Discrete distribution example:
Answer: B
9. Mean of distribution depends on:
Answer: A
10. ΣP(x) must be:
Answer: B
11. Random variable denoted by:
Answer: A
12. Distribution table shows:
Answer: A
13. Expected value formula:
Answer: A
14. Variance measures:
Answer: A
15. Standard deviation unit:
Answer: A
16. Probability distribution graph:
Answer: A
17. Continuous distribution area:
Answer: A
18. Random variable belongs to:
Answer: A
19. Mean also called:
Answer: A
20. Distribution validity condition:
Answer: C