A jar contains 10 red marbles and 20 blue marbles.If you take a random sample with replacement of two marbles from this jar and the first marble is blue,then the probability that the second marble is blue is p = 19/29.

Question

Quizplus · Accepted Answer

After taking one blue marble out and replacing it, the jar still contains 20 blue marbles out of a total of 30 marbles, so the probability that the second marble is blue remains 20/30 or 2/3.

A Jar Contains 10 Red Marbles and 20 Blue Marbles