Q. 74.8( 12 Votes )

A bag contains 3

Answer :

Concept Used:


(i) Total number of balls in the bag = 8
No of red balls = 3
Let E be the event of getting a red ball, then
No of favourable outcomes = No of red balls = 3
No of possible outcomes = No of total balls = 8

The probability of the ball drawn to be red:

Hence, the probability of a red ball is 3/8.

(ii) We know that:

where E and are complementary events, as getting a red ball and not getting a red ball are complementary events


The probability of not getting the red ball

= 1 - Probability of getting a red ball

= 1 – 3/8

= 5/8

Hence, the probability of not red is 5/8.

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