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CBSE Class 12-science Answered

Find the probability of success p for a binomial distribution, if n = 6 and 4 × P(X=4) = P(X=2)

Asked by 1999shaileshraj | 22 Feb, 2020, 11:50: AM
Expert Answer
Find the probability of success p for a binomial distribution, if n = 6 and 4 × P(X=4) = P(X=2)
 
4 × P(X=4) = P(X=2)
46C4 p4q2 = 6C2 p2q4 
46C2 p4q2 = 6C2 p2q4 
4p2 = q2
2p = q
Also we know that p + q = 1
2p + p = 1
3p = 1
p = 1/3
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