4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 46SE: How many ways can a committee of 3 freshmen and 4 juniors be formed from a group of 8 freshmen and...
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1s?
3. How many possible ways to assign a room for each of the 5 students, suppose we have 8
rooms available, and we want to make sure each student has his/her own room.
4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?
Transcribed Image Text:1s? 3. How many possible ways to assign a room for each of the 5 students, suppose we have 8 rooms available, and we want to make sure each student has his/her own room. 4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?
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