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Ex 13.4
Ex 13.4, 2
Ex 13.4, 3 Important
Ex 13.4, 4 (i)
Ex 13.4, 4 (ii)
Ex 13.4, 4 (iii) Important
Ex 13.4, 5 (i) Important
Ex 13.4, 5 (ii)
Ex 13.4, 6 Important
Ex 13.4, 7 Important You are here
Ex 13.4, 8
Ex 13.4, 9
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Ex 13.4, 11 Important
Ex 13.4, 12 Important
Ex 13.4, 13 Important Deleted for CBSE Board 2023 Exams
Ex 13.4, 14
Ex 13.4, 15
Ex 13.4, 16 (MCQ)
Ex 13.4, 17 (MCQ) Important
Last updated at March 16, 2023 by Teachoo
Ex 13.4, 7 A coin is biased so that the head is 3 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails.Given that head is 3 times as likely to occur as tail. it means that if 4 times coin is tossed,3 times there will be head and 1 time their will be tail P(H) = 3/4 P (T) = 1/4 Now, Coin is tossed twice, we need to find the probability distribution of number of tails. Let X: Number of tails Since we toss coin twice So, we can get 0 tails , 1 tail or 2 tails. So, value of X can be 0, 1, 2 ∴ The Probability distribution is