SOLUTION: how many ways can a row of three contestants for a TV game show be selected from an audience of 342 people

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Question 1136109: how many ways can a row of three contestants for a TV game show be selected from an audience of 342 people
Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
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If the problem means "a row" as the ordered set, then the answer is  342*341*340,  and you can use your calculator 
to get the numerical value.


But if the order does not matter, then the team of 3 contestants can be selected by  C%5B342%5D%5E3 = %28342%2A341%2A340%29%2F%281%2A2%2A3%29 ways from the audience.


In the first case we have deal with PERMUTATIONS.


In the second case, we consider COMBINATIONS.

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On Combinations and Permutations,  see the lessons
    - Introduction to Permutations
    - PROOF of the formula on the number of Permutations
    - Problems on Permutations
    - 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.   //   I listed here the "introductory" lessons only . . .

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.