Answer:
We have 5 red and 2 black balls. When 2 balls are drawn at random, then there are the following possibilities.
(i) Both balls drawn are red.
(ii) 1 red and 1 black ball.
(iii) Both black balls
In case (i), X = 0
In case (ii), X = 1
In case (iii), X = 2
Therefore x is a random variable and x may take the value 0, 1, 2.
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