SOLUTION: A bag contains 80 balls of which 20 are red, 25 are blue and 35 are white. A ball is picked at random ,what is the probability that the ball picked is
(i) Red ball
(ii) Red or Bl
(i) 20 favorable outcomes of 80.
The probability under the question is = = 0.25 = 25%.
(ii) 20+25 = 45 favorable outcomes of 80.
The probability under the question is = = .0.5625 = 56.25%.