In a certain college, 20% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that exactly 2 belong to an ethnic minority?
0.30199
0.00007
1.8
0.00671
p = 0.2, q = 0.8
Prob of exactly 2 ethnic minorities: p^2*q^8 → 0.2^2*0.8^8 → 0.00671
