   Chapter 9.9, Problem 11ES ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193

#### Solutions

Chapter
Section ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
14 views

# One urn contains 12 blue balls and 7 white balls, and a second urn contains 8 blue and 19 white balls. An is second urn contains 8 blue balls and 19 white balls. An urn selected at random, and a ball is chosen from the urn. What is the probability that the chosen ball is blue? If the chosen ball is blue, what is the probability that it came from the first urn?

To determine

To find out the probability that chosen ball is blue.

Explanation

Given information:

One urn contains 12 blue balls and 7 white balls and second urn contains 8 blue balls and 19 white balls.

Calculation:

Let A= event of choosing the blue ball.

E1= event of choosing the blue ball from first bag.

E2= event of choosing the blue ball from second bag.

P(A)=i=1nP(Ei)(A|Ei){using multiplicat

To determine

To find out the probability that chosen ball is blue and it came from the first urn.

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