If the 50 guests in the party described in question number 5 where actually couples (so there are 25 couples in the party) and each guest will shake the hand of every other guest. (Of course, no handshake will be exchanged between a guest and his/her partner). How many handshakes were exchanged in the party?

If the 50 guests in the party described in question number 5 where actually couples (so there are 25 couples in the party) and each guest will shake the hand of every other guest. (Of course, no handshake will be exchanged between a guest and his/her partner). How many handshakes were exchanged in the party?

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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