Three people are running for president of the student council. The polls show James has odds in favour of winning at 2:3, Rebecca has odds in favour at 7:13, and Henry has odds in favour at 1:3. Suppose that Henry withdraws and offers his support to Rebecca.

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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Three people are running for president of the student council. The polls show James has odds in favour of winning at 2:3, Rebecca has odds in favour at 7:13, and Henry has odds in favour at 1:3. Suppose that Henry withdraws and offers his support to Rebecca. Further, suppose that his supporters also switch to Rebecca. What is the probability of Rebecca winning now?
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