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Standard VIII

Mathematics

Experimental Probability

A bag contain...

Question

A bag contains 4 white and 5 blue balls. They are mixed thoroughly and one ball is drawn at random. What is the probability of getting (i) a white ball ? (ii) a blue ball ?

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Solution

In a bag, there are 4 white and 5 blue balls
$∴$ Possible outsomes =4+5=9
One ball is drawn at random,then
(i) the probability of a white ball = $\frac{4}{9}$
(ii) the probability of a blue ball = $\frac{5}{9}$

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A bag contains 4 white and 5 blue balls. They are mixed thoroughly and one ball is drawn at random. What is the probability of getting (i) a white ball ? (ii) a blue ball ?

In a bag, there are 4 white and 5 blue balls ∴ Possible outsomes =4+5=9 One ball is drawn at random,then (i) the probability of a white ball =49 (ii) the probability of a blue ball =59

In a bag, there are 4 white and 5 blue balls
$∴$ Possible outsomes =4+5=9
One ball is drawn at random,then
(i) the probability of a white ball = $\frac{4}{9}$
(ii) the probability of a blue ball = $\frac{5}{9}$