Answered: (5) At a part, 28 handshakes took…

(5) At a part, 28 handshakes took place. Each person shook hands exactly once with each of the others present. How many people were at the party? (a) 8 (b) 9 (c) 10 (d) 11 12

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.6: Counting Principles

Problem 9ECP: In three-card poker, a hand consists of three cards dealt from a deck of 52. How many different...

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

(5) At a part, 28 handshakes took place. Each person shook hands exactly once with each
of the others present. How many people were at the party?
(a) 8
(b) 9
(c) 10
(d) 11
(e) 12

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