If the mean of Binomial distribution is 5 and Variance is 3 then the value of p(probability of success ) is :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $\frac{2}{5}$
$μ=np=5$
$σ=npq=3$
so $\frac{np}{npq}=\frac{5}{3}$
so $q=\frac{3}{5}$
$p=1-q=\frac{2}{5}$