## Question

### Solution

Correct option is

2/3

Let Ei (0 ≤ i ≤ 2) denote the vent that urn contains i white and (2 – i) black balls. Let A denote the event that a white ball is drawn from the urn.

We have    P(Ei) = 1/3      for     i = 0, 1, 2 and By the total probability rule,  #### SIMILAR QUESTIONS

Q1

If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, one ball is drawn at random, then the probability that two white and one black ball will be drawn is

Q2

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Q3

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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Q10

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