A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. The discs are similar in shape and size. A disc is drawn at random from the bag. Calculate the probability that it will be (i) red, (ii) yellow, (iii) blue, (iv) not blue, (v) either red or blue.

Answer

`(i) (4)/(9),(ii) (2)/(9),(iii) (1)/(3),(iv) (2)/(3),(v) (7)/(9)`