Three red balls and three green balls are randomly placed on a circle. Find the expectation of the number of red balls such that both their neighbours are green.

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 red balls and three green balls are
randomly placed on a circle. Find the
expectation of the number of red balls such
that both their neighbours are green.
Transcribed Image Text:Three red balls and three green balls are randomly placed on a circle. Find the expectation of the number of red balls such that both their neighbours are green.
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