Question

a bag contains 3red, 3white&3green balls of the same size. One ball is taken out of the bag at random. What is the probability that the ball drawn is (I) red (II) green (iii)either red or white.
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Answer 1

$1) \: \: \frac{1}{3} \\ 2) \: \: \frac{1}{3} \\ 3) \: \: \frac{2}{3}$

Answer 2

since, the red colour and white are different... it's mutually exclusive events