The distribution of the binomial random variable (X) has the following parameters p = 0.3 and n = 9. Determine Var(X).
To find the variance of a binomial random variable, we use the formula Var(X) = np(1-p).
Given that p = 0.3 and n = 9, we can substitute these values into the formula:
Var(X) = 9 * 0.3 * (1 - 0.3)
Var(X) = 9 * 0.3 * 0.7
Var(X) = 1.89
Therefore, the variance of the binomial random variable X is 1.89.