Q. 124.5( 2 Votes )

One urn contains

Answer :

Given that one urn contains two black balls and one white ball

and second urn contains one black ball and two white balls

It is also given that one of the two urns is chosen, then a ball is randomly chosen from the urn, then second ball is chosen at random from the same urn without replacing the first ball

(a) Sample Space S = {B1B2, B1W, B2W, B2B1, WB1, WB2, W1W2, W1B, W2B, W2W1, BW1, BW2}

Total number of sample space = 12

(b) If two black balls are chosen

Total outcomes = 12

Favourable outcomes are B1B2, B2B1

Total favourable outcomes = 2

We know that,

(c) If two balls of opposite colours are chosen

Favourable outcomes are B1W, B2W, WB1, WB2, W1B, W2B, BW1, BW2

Total favourable outcomes = 8

and Total outcomes = 12

We know that,

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

Suppose an integeMathematics - Exemplar

Match the followiMathematics - Exemplar

While shuffling aMathematics - Exemplar

Three numbers areMathematics - Exemplar

A bag contains 8 Mathematics - Exemplar

In a non-leap yeaMathematics - Exemplar

Determine the proMathematics - Exemplar

A card is drawn fMathematics - Exemplar

If the letters ofMathematics - Exemplar