5 choose 1
Choosing 1 from 5— order doesn't matter.
Combinations (order doesn't matter)
5C1 = 5
Permutations (order matters): 5P1 = 5
There are 5 ways to choose 1 items from 5when order doesn't matter, using the formula C(n, k) = n! / (k! · (n − k)!).
5 choose k table
| Expression | Combinations |
|---|---|
| 5 choose 0 | 1 |
| 5 choose 1 | 5 |
| 5 choose 2 | 10 |
| 5 choose 3 | 10 |
| 5 choose 4 | 5 |
| 5 choose 5 | 1 |
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Frequently asked questions
What is 5 choose 1?+
5 choose 1 equals 5. It counts the number of ways to choose 1 items from 5 when the order does not matter.
What is the formula for 5 choose 1?+
The combinations formula is C(n, k) = n! / (k! · (n − k)!). For 5 choose 1: 5! / (1! · 4!) = 5.