Jinsi ya kukokotoa Combinations
Combinations ni nini?
Combinations count the number of ways to select k items from n items without regard to order. Written as C(n,k) or "n choose k", used in probability and statistics.
Fomula
C(n,k) = n! / (k! × (n-k)!)
Mwongozo wa Hatua kwa Hatua
- 1Enter n (total items) and k (items to select)
- 2Calculate factorials n!, k!, and (n-k)!
- 3Divide n! by the product of k! and (n-k)!
Mifano Iliyotatuliwa
Ingizo
C(5,2)
Matokeo
10
5! / (2! × 3!) = 120 / 12 = 10
Makosa ya Kawaida ya Kuepuka
- ✕Confusing combinations with permutations
- ✕Incorrect factorial calculations
Je, uko tayari kukokotoa? Jaribu Kikokotoo kisicholipishwa cha Combinations
Jaribu mwenyewe →