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

Ex 13.4, 10 - Chapter 13 Class 12 Probability (Term 2)

Last updated at Feb. 15, 2020 by

Ex 13.4, 10 - Find mean number of heads in three tosses of a fair coin

Ex 13.4, 10 - Chapter 13 Class 12 Probability - Part 2

  1. Chapter 13 Class 12 Probability (Term 2)
  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 (Term 2)
Serial order wise

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