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Probability Distribution
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Probability Distribution
Last updated at May 29, 2023 by Teachoo
Question 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