Practicing Success
Practicing Success
CUET Preparation Today
If a random variable X follows Poisson distribution such that $3P(X=2)=2P(X=1)$, then the variance of X is : |
$\frac{4}{3}$ 1 $\frac{2}{3}$ $\frac{1}{3}$ |
$\frac{4}{3}$ |
