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# RD Sharma Solution for Class 12 Science Mathematics Chapter 32 - Mean and variance of a random variable

Our RD Sharma Textbook Solutions are considered extremely helpful for solving the tough questions which are asked in the CBSE Class 12 exam. TopperLearning Textbook Solutions are compiled by subject experts. Herein, you can find all the answers to the textbook questions for Chapter 32 - Mean and variance of a random variable.

All our solutions are created in accordance with the latest CBSE syllabus, and they are amended from time to time to provide the most relevant answers. Our free RD Sharma Solutions for CBSE Class 12 Mathematics will strengthen your fundamentals in Mathematics and will help you in your attempts to score more marks in the final examination. CBSE Class 12 students can refer to our solutions any time — while doing their homework and while preparing for the exam.

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## RD Sharma Solution for Class 12 Science Mathematics Chapter 32 - Mean and variance of a random variable Page/Excercise MCQ

Solution 1

Correct option: (d)

Solution 2

Correct option: (b)

Solution 3

Correct option: (d)

Solution 4

Correct option: (a)

Solution 5

Correct option: (d)

Solution 6

Correct option: (c)

NOTE: Question is modified.

Solution 7

Correct option: (d)

Solution 8

Correct option: (d)

Solution 9

Correct option: (c)

Variance of discrete random variable is always E(X2) - (E(X))2

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## Browse Study Material

TopperLearning provides step-by-step solutions for each question in each chapter in the RD Sharma textbook for class 9. Access the CBSE Class 9 Mathematics Chapter 32 - Mean and variance of a random variable for free. The textbook questions have been solved by our subject matter experts to help you understand how to answer them. Our RD Sharma Textbook Solutions will help you to study and revise, and you can easily clear your fundamentals of Chapter 32 - Mean and variance of a random variable.

# Text Book Solutions

CBSE XII Science - Mathematics

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