An urn contains 5 red, 6 blue and 8 green balls. 3 balls are randomly selected from the urn, find the probability that the drawn ball are blue?
Pick one:
A) 20/969  B) 20/875  C) 21/876  D) 3/512  E) 2/9
Sample space = no. of ways 3 balls were drawn from urn = 19C3 = 969   No. ways 3 blue balls were drawn from bag = 6C3 = 20   Probability = 20 / 969   20/969ns - 20/969
<result>A</result>
An urn contains 5 red, 6 blue and 8 green balls. 3 balls are randomly selected from the urn, find the probability that the drawn ball are blue?