SOLUTION: Compute how many ways you can select n elements from N elements when n = 5 and N = 20. A. 15,504 B. 225 C. 100 D. 775

Question 1142513: Compute how many ways you can select n elements from N elements when n = 5 and N = 20.
A. 15,504
B. 225
C. 100
D. 775
Answer by ikleyn(52864) (Show Source): You can put this solution on YOUR website!
.

This number is the number of combinations of "N" elements taken "n" at a time


     =  = .


Use your calculator to get the numerical value.

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On Combinations, see introductory lessons
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

Also, you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Combinatorics: Combinations and permutations".

Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.

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