1. Chapter 13 Class 12 Probability
  2. Serial order wise
  3. Ex 13.4

Ex 13.4, 2 - Chapter 13 Class 12 Probability

Last updated at Dec. 8, 2016 by

Ex 13.4, 2 - An urn contains 5 red, 2 black balls. Two balls - Ex 13.4

Slide4.JPG

  1. Chapter 13 Class 12 Probability
  2. Serial order wise

    3. Ex 13.4

    Ex 13.5 →

Transcript

Ex 13.4, 2 An urn contains 5 red and 2 black balls. Two balls are randomly drawn. Let X represent the number of black balls. What are the possible values of X? Is X a random variable ? When two balls are drawn from the urn, possible outcomes are : Sample Space S = {RR, BB, BR, RB} Let X : number of black balls Hence values of X can be 0, 1, 2 Hence X = {0, 1, 2} Thus, X is a real valued function whose domain is sample space Hence, X is a random variable

Chapter 13 Class 12 Probability
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.