SOLUTION: A bag contains 6 red, 3 black and 6 white balls. A ball is selected at random from the bag. Find the probability that the selected ball is : (a) red or black (b) not black

Algebra ->  Probability-and-statistics -> SOLUTION: A bag contains 6 red, 3 black and 6 white balls. A ball is selected at random from the bag. Find the probability that the selected ball is : (a) red or black (b) not black      Log On


   



Question 844909: A bag contains 6 red, 3 black and 6 white balls. A ball is selected at random from the bag.
Find the probability that the selected ball is :
(a) red or black
(b) not black

Answer by Fombitz(32388) About Me  (Show Source):