Q. 193.5( 2 Votes )

A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is:

(i) red

(ii) black or white

(iii) not black

Answer :

Sample space, n(S) = 15

(i) n(E) = 7

(ii) n(E) = 10

(iii) n(E) = 5

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