52. Shaking Hands in a Group A group of six strangers sat in a circle, and each one got acquainted only with the person to the left and the person to the right. Then all six people stood up and each one shook hands (once) with each of the others who was still a stranger. How many handshakes occurred?

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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52. Shaking Hands in a Group A group of six strangers sat
in a circle, and each one got acquainted only with the
person to the left and the person to the right. Then all
six people stood up and each one shook hands (once)
with each of the others who was still a stranger. How
many handshakes occurred?
Transcribed Image Text:52. Shaking Hands in a Group A group of six strangers sat in a circle, and each one got acquainted only with the person to the left and the person to the right. Then all six people stood up and each one shook hands (once) with each of the others who was still a stranger. How many handshakes occurred?
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