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

Algebra ->  Probability-and-statistics -> 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      Log On


   



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) About Me  (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


    C%5BN%5D%5En = C%5B20%5D%5E5 = %28%2820%2A19%2A18%2A17%2A16%29%2F%281%2A2%2A3%2A4%2A5%29%29.


Use your calculator to get the numerical value.

------------------


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.