Mean =np=4 ‌‌ Variance ‌=npq=3 ‌⇒‌‌q=‌
3
4
and ‌‌p=1−q=1−‌
3
4
=‌
1
4
⇒‌‌n=16 Now, Mode of Binomial distribution is given by (n+1)P Case IIf (n+1)P=Integer(I), then Mode ={I,I−1} Case II If (n+1)P≠Integer(I+f), then Mode ={I} ∴(n+1)P‌=(16+1)‌