Question -
Answer -
What is the probability that the ball drawn is
(i) red?
(ii) not red?
Solution
The total number of balls = No. of red balls +No. of black balls
So, the total no. of balls = 5+3 = 8
We know that the probability of an event isthe ratio between the no. of favourable outcomes and the total number ofoutcomes.
P(E) = (Number of favourable outcomes/ Totalnumber of outcomes)
(i) Probability of drawing red balls = P (redballs) = (no. of red balls/total no. of balls) = 3/8
(ii) Probability of drawing black balls = P(black balls) = (no. of black balls/total no. of balls) = 5/8