4. There are three coins in a box. One is a two-headed coin, another is a fair coin, and the third is abiased coin that comes up heads 80% of the time.(a) When one of these coins were selected at random and flipped, what is the probability that itshows heads?(b) If the flipped coin shows heads, what is the probability that it was the fair coin?

Answered: Image /qna-images/answer/00d058ab-f05e-469e-91ff-dee91838fe70.jpg

Answered: (a) When one of these coins were…

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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(a) When one of these coins were selected at random and flipped, what is the probability that it shows heads? (b) If the flipped coin shows heads, what is the probability that it was the fair coin?