JEE Exam > JEE Videos > Mathematics (Maths) Class 12 > Variance of Random Variable - Probability, Class 12, Math
Variance of Random Variable - Probability, Class 12, Math Video Lecture | Mathematics (Maths) Class 12 - JEE
|
204 videos|290 docs|139 tests
|
FAQs on Variance of Random Variable - Probability, Class 12, Math Video Lecture - Mathematics (Maths) Class 12 - JEE
| 1. What is variance of a random variable? |  |
Ans. Variance of a random variable is a measure of how much the values of the variable vary around the expected value. It provides information about the spread or dispersion of the probability distribution of the random variable.
| 2. How is variance calculated for a random variable? | |
Ans. The variance of a random variable can be calculated by taking the average of the squared differences between each value of the random variable and its expected value. Mathematically, it can be expressed as Var(X) = E((X - E(X))^2), where E(X) represents the expected value of the random variable.
| 3. What does a high variance indicate for a random variable? | |
Ans. A high variance for a random variable indicates that the values of the variable are spread out over a larger range and are more dispersed. It suggests that there is a greater degree of uncertainty or variability in the possible outcomes of the random variable.
| 4. How does variance relate to the probability distribution of a random variable? | |
Ans. Variance is a measure of the spread or dispersion of the probability distribution of a random variable. It quantifies how much the values of the random variable deviate from the expected value. A higher variance indicates a wider distribution, while a lower variance indicates a narrower distribution.
| 5. Can variance be negative for a random variable? | |
Ans. No, variance cannot be negative for a random variable. Variance is defined as the average of the squared differences between each value of the random variable and its expected value. Since squared differences are always non-negative, the variance will always be non-negative as well.
Related Exams
About this Video
|
4.92/5 Rating |
|
Nov 22, 2024 Last updated |
Video Description: Variance of Random Variable - Probability, Class 12, Math for JEE 2024 is part of Mathematics (Maths) Class 12 preparation.
The notes and questions for Variance of Random Variable - Probability, Class 12, Math have been prepared according to the JEE exam syllabus.
Information about Variance of Random Variable - Probability, Class 12, Math covers all important topics for JEE 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Variance of Random Variable - Probability, Class 12, Math.
Introduction of Variance of Random Variable - Probability, Class 12, Math in English is available as part of our Mathematics (Maths) Class 12 for JEE & Variance of Random Variable - Probability, Class 12, Math in
Hindi for Mathematics (Maths) Class 12 course. Download more important topics related with notes, lectures and mock test series for
JEE Exam by signing up for free.
Description
Video Lecture & Questions for Variance of Random Variable - Probability, Class 12, Math Video Lecture | Mathematics (Maths) Class 12 - JEE - JEE full syllabus preparation | Free video for JEE exam to prepare for Mathematics (Maths) Class 12.
Information about Variance of Random Variable - Probability, Class 12, Math
Here you can find the meaning of Variance of Random Variable - Probability, Class 12, Math defined & explained in the simplest way possible.
Besides explaining types of Variance of Random Variable - Probability, Class 12, Math theory, EduRev gives you an ample number of questions to practice Variance of Random Variable - Probability, Class 12, Math tests,
examples and also practice JEE tests.
|
204 videos|290 docs|139 tests
|
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Math Video Lecture | Mathematics (Maths) Class 12 - JEE
,Previous Year Questions with Solutions
,Summary
,Objective type Questions
,Class 12
,Class 12
,past year papers
,MCQs
,ppt
,practice quizzes
,Variance of Random Variable - Probability
,Viva Questions
,Class 12
,study material
,Variance of Random Variable - Probability
,Math Video Lecture | Mathematics (Maths) Class 12 - JEE
,Semester Notes
,Free
,shortcuts and tricks
,Sample Paper
,Variance of Random Variable - Probability
,Important questions
,Exam
,video lectures
,Extra Questions
,mock tests for examination
,Math Video Lecture | Mathematics (Maths) Class 12 - JEE
;
Study Variance of Random Variable - Probability, Class 12, Math on the App
Students of JEE can study Variance of Random Variable - Probability, Class 12, Math alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Variance of Random Variable - Probability, Class 12, Math,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Variance of Random Variable - Probability, Class 12, Math is prepared as per the latest JEE syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup