Assume that you are drawing two balls without replacement fr

Assume that you are drawing two balls without replacement from an urn that contains 13 green balls,10 blue balls, and 5 red balls. What is the probability that you will draw a green ball and and a blue ball.

Solution

the probability that you will draw a green ball=13/28

he probability that you will draw a blue ball.=10/27

the probability that you will draw a green ball and and a blue ball.=13/28*10/27+10/28*13/27=0.342