Example 7: Permutations of n items taken r at a time Evaluate each expression (a) P(7,3) (b) P(15,5)
Example 7: Permutations of n items taken r at a time Evaluate each expression (a) P(7,3) (b) P(15,5)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Key Concept: Permutations of n items taken r at a time
P(n,r) represent the number of permutations of n items r at a time. Write down the formula from
the video in the space provided below.
Example 7: Permutations of n items taken r at a time
Evaluate each expression
(a) P(7,3)
(b) P(15,5)
Example 8: Arranging students into presentation groups
If a class has 28 students, how many different arrangements can five students give a presentation
to the class?
Key Concept: Permutations with duplicates
The number of different permutations of n objects where there are n, duplicates, n₂ duplicates,
..., and n duplicates is: (write down the formula from the video in the space provided below)
Example 9: Rearranging the letters in words]
In how many ways can the letters of the word MATHEMATICS be arranged?
65](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0f7f9688-d312-4084-8dfb-b7dfb0397ca0%2F4c998909-1767-43a5-b81e-929d388693e7%2Fyzn3taj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Key Concept: Permutations of n items taken r at a time
P(n,r) represent the number of permutations of n items r at a time. Write down the formula from
the video in the space provided below.
Example 7: Permutations of n items taken r at a time
Evaluate each expression
(a) P(7,3)
(b) P(15,5)
Example 8: Arranging students into presentation groups
If a class has 28 students, how many different arrangements can five students give a presentation
to the class?
Key Concept: Permutations with duplicates
The number of different permutations of n objects where there are n, duplicates, n₂ duplicates,
..., and n duplicates is: (write down the formula from the video in the space provided below)
Example 9: Rearranging the letters in words]
In how many ways can the letters of the word MATHEMATICS be arranged?
65
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