A group of 10 people is choosing a chairperson and vise-chairperson. They put all 19 people's name into a hat. The first name draw becomes chair. The second name drawn become vise-chair. How many possible combinations of chair and vice-chair are there?

A group of 10 people is choosing a chairperson and vise-chairperson. They put all 19 people's name into a hat. The first name draw becomes chair. The second name drawn become vise-chair. How many possible combinations of chair and vice-chair are there?

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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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

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Note: given that there are total of 10 people. Thus there is only chance to put 10 peoples name into a hat. In question 10 is mistyped as 19.

A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name drawn becomes chair person. The second name drawn becomes vice-chairperson.

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