Question 11 - Probability Distribution - Chapter 13 Class 12 Probability

Last updated at Dec. 16, 2024 by

Ex 13.4, 11 - Two dice are thrown. If X is number of sixes

Ex 13.4, 11 - Chapter 13 Class 12 Probability - Part 2
Ex 13.4, 11 - Chapter 13 Class 12 Probability - Part 3

Remove Ads

Transcript

Question 11 Two dice are thrown simultaneously. If X denotes the number of sixes, find the expectation of X.Let X be the number of sixes occur So, value of X can be 0, 1 or 2 Total number of possible outcomes = 36 So, our probability distribution is The Expectation of X is given by E(X) = 𝜇=∑_(𝑖=1)^𝑛▒𝑥𝑖𝑝𝑖 = 0 × 25/36+1 × 10/36+2 × 1/36 = 10/36+2/36 = 12/36 = 𝟏/𝟑

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo