To determine the probability of having exactly two students who are good at Mathematics in a group of 8 students. We use Binomial probability formula, p(X=k)=‌nCkpk(1−p)n−k Here, n=8,k=2,p=0.6=‌
6
10
Then, required probability ‌=P(X=2)=‌8C2×(‌