We randomly put blue and red marbles into two boxes. It ends up that the first box has 6 blue marbles and 8 red marbles. The second box has 6 blue marbles and 2 red marbles. We randomly pick one box, and randomly pick a marble from it. If the marble we picked was red, what is the probability that we drew from the first box?

We randomly put blue and red marbles into two boxes. It ends up that the first box has 6 blue marbles and 8 red marbles. The second box has 6 blue marbles and 2 red marbles. We randomly pick one box, and randomly pick a marble from it. If the marble we picked was red, what is the probability that we drew from the first box?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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