archived_user
New member
- Jun 18, 2026
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Hi -
how does the labelling formula match a combination formula (since order does not matter)? eg 10! / (7!*2!) states labelling 7 and 2 units out of 10. Coins are an example of order does not matter and repetition is allowed, but eg the formula for 3 coins out of 5 is (3+5-1)/(3!*(5-1)!).
So where does the labelling formula fit within combinations?
Thanks
how does the labelling formula match a combination formula (since order does not matter)? eg 10! / (7!*2!) states labelling 7 and 2 units out of 10. Coins are an example of order does not matter and repetition is allowed, but eg the formula for 3 coins out of 5 is (3+5-1)/(3!*(5-1)!).
So where does the labelling formula fit within combinations?
Thanks