A bag contains 6 red, 2 green balls. 3 balls are drawn randomly. What is the probability that balls drawn contain exactly two green balls? Choose the correct choice:
A) 1/7  B) 2/9  C) 3/11  D) 3/28  E) 2/3
Total number of balls = 6+2= 
<gadget id="calculator">6+2</gadget>
<output>8</output>
8   n(S)= 8C3 = 8*7*6 / 3*2 = 56   n(E) = 2C2* 6C1 = 6   Probability = 6/56 = 3/28   Answer is 3/28
<result>D</result>
A bag contains 6 red, 2 green balls. 3 balls are drawn randomly. What is the probability that balls drawn contain exactly two green balls?