Question

For 6 trails of an experiment, let X be a binomial variate which satisfies the relation 9P(X = 4) = P(X = 2). Find the probability of success.

Answer 1

Let p = Probability of success, q =  Probability of failure and X be a random variable that denote the number of success in 6 trials.

As, X follows binomial distribution with parameters,

n = 6, p and q.

Thus, p = 1/4 [:. probability cannot be negative ]