Combinations
Choose X from N is
$$ C_N^X = \frac{N!}{ X! (N-X)! } $$
Planted:
by L Ma;
Similar Articles:
L Ma (2019). 'Combinations', Datumorphism, 04 April. Available at: https://datumorphism.leima.is/cards/math/combinations/.
Choose X from N is
$$ C_N^X = \frac{N!}{ X! (N-X)! } $$
L Ma (2019). 'Combinations', Datumorphism, 04 April. Available at: https://datumorphism.leima.is/cards/math/combinations/.