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

Ex 13.4, 10 - Chapter 13 Class 12 Probability

Last updated at Feb. 15, 2020 by

Slide33.JPG

Slide34.JPG

Subscribe to our Youtube Channel - https://you.tube/teachoo

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

    3. Ex 13.4

    Ex 13.5 →

Transcript

Ex 13.4, 10 Find the mean number of heads in three tosses of a fair coin.Ex 13.4, 10 Find the mean number of heads in three tosses of a fair coin.So the Probability distribution The mean number is given by ๐œ‡=๐ธ(๐‘ฅ)=โˆ‘2_(๐‘– = 1)^๐‘›โ–’๐‘ฅ๐‘–๐‘๐‘– = 0 ร— 1/8+"1 ร—" 3/8+ 2 ร— 3/8+ 3 ร— 1/8 = 0 + 3/8+ 6/8+3/8 = 12/8 = 3/2 = 1.5

Chapter 13 Class 12 Probability
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.