The Grinch sneaks into a room with 9 Christmas presents to 9 different people. He proceeds to switch the name-labels on the presents. How many ways could he do this if: Exactly 4 presents keep their original labels? Explain. Exactly 8 presents keep their original labels? Explain

The Grinch sneaks into a room with 9 Christmas presents to 9 different people. He proceeds to switch the name-labels on the presents. How many ways could he do this if: Exactly 4 presents keep their original labels? Explain. Exactly 8 presents keep their original labels? Explain

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.5: Counting Principles

Problem 53SE: Susan bought 20 plants to arrange along the border of her garden. How many distinct arrangements can...

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The Grinch sneaks into a room with 9 Christmas presents to 9 different people. He proceeds to switch the name-labels on the presents. How many ways could he do this if:

Exactly 4 presents keep their original labels? Explain.
Exactly 8 presents keep their original labels? Explain

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