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

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

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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.