A mathematical expression that represents the number of ways to distribute n objects among three distinct classes. It is given by the formula (n choose p, q, r) = n! / (p! × q! × r!), where p + q + r = n.
A mathematical expression that represents the number of ways to distribute n objects among three distinct classes. It is given by the formula (n choose p, q, r) = n! / (p! × q! × r!), where p + q + r = n.