At the station there are three payphones which accept 20p pieces. One never works, another always works, while the third works with probability 1/2. On my way to the metropolis for the day. I wish to identify the reliable phone, so that I can use it on my return. The station is empty and 1 have just three 20p pieces. I try one phone and it does not work. 1 try another twice in succession and it works both times. What is the probability that this second phone is the reliable one?

At the station there are three payphones which accept 20p pieces. One never works, another always works, while the third works with probability 1/2. On my way to the metropolis for the day. I wish to identify the reliable phone, so that I can use it on my return. The station is empty and 1 have just three 20p pieces. I try one phone and it does not work. 1 try another twice in succession and it works both times. What is the probability that this second phone is the reliable one?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section: Chapter Questions

Problem 19T: You and three of your friends are at a party. Names of all of the 30 guests are placed in a hat and...

See similar textbooks