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Real Numbers

Question

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From a bag containing 5 red, 8 black and 7 blue balls, a ball is selected at random. Find the probability that:

(i) it is not a red ball
(ii) it is not a blue ball.

Solution

Solution not provided.
Ans. $3 over 4 comma space 13 over 20$

Some More Questions From Real Numbers Chapter

The probability of an event that cannot happen is Such an event is called __.

The probability of an event that is certain to happen is Such an event is called _.

The sum of the probabilities of all the elemen-tary events of an experiment is ______.

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