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13. Probability
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Q1 of 30 Page 13

Compute P (A/B), if P (B) = 0.5 and P (A∩B) = 0.32

Given: P(B) = 0.5, P(A∩B) = 0.32


To find: P(A|B)


We know that,



By substituting the values we get




is the required value

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2

From a pack of 52 cards, two are drawn one without replacement. Find the probability that both of them are kings.

3

If P (A) = 7/13, P (B) =9/13 and P (A ∩ B) = 4/13, find p (A/B).

4

An urn contains 5 red and 5 black balls. A ball is drawn at random, its colour is noted and is returned to the urn. Moreover, 2 additional balls of the colour drawn are put in the urn and then a ball is drawn at random. What is the probability that the second ball is red?

5

If the mean and variance of a binomial distribution are respectively 9 and 6, find the distribution.

Questions · 30
13. Probability
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