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Difference between combinations and variations

Difference between combinations and variations

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In the example of choosing 4 out of 10 athletes for the relay race, we have to first pick 4 out of the 10 athletes and then arrange them accordingly. So wont the actual solution be picking the 4 players of the 10 players ( using combinations) and then arranging these 4 players in the positions of 1,2,3,4 (using permutations) ?

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365 Team
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Hey Asrith, 
 
Thanks for reaching out!
You’ve actually understood combinatorics on such a level that you’ve realized the relationship between combinations, variations and permutations on your own (* C = V/P or V =  C*P). We mention this later in the course as well. 
If you look at the formulas for combinations, variations and permutations, this relationship will be even clearer. 
 
Best, 
365 Vik

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