combinatorics Flashcards
(4 cards)
1
Q
with order, no replacement
A
n! / (n-k)!
2
Q
with order, with replacement
A
n^k
3
Q
no order, no replacement
A
(n k)
4
Q
no order, with replacement
A
(n+k-1 k)
with order, no replacement
n! / (n-k)!
with order, with replacement
n^k
no order, no replacement
(n k)
no order, with replacement
(n+k-1 k)