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How many permutations of {1, 2, 3, 4, 5, 6, 7} leave exactly 1 element fixed?

How many permutations of {1, 2, 3, 4, 5, 6, 7} leave exactly 1 element fixed?

A First Course in Probability (10th Edition)
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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6. Practice similar Help me with this * 1 5 attempts remaining. How many permutations of {1,2, 3, 4, 5, 6, 7} leave exactly 1 element fixed?
Transcribed Image Text:6. Practice similar Help me with this * 1 5 attempts remaining. How many permutations of {1,2, 3, 4, 5, 6, 7} leave exactly 1 element fixed?
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