Вопрос
THE NUMBER OF COMBINATIONS OF n OBJECTS TAKEN m AT A TIME IS DENOTED BY Select one: P_(n) A_(m)^n O A_(n)^m P_(k) C_(n)
Решения
4.7
(240 Голоса)
Никанор
Экспертная проверка
мастер · Репетитор 5 лет
Ответ
The correct answer is
.The number of combinations of n objects taken m at a time is denoted by
, which is also written as
or "n choose m". It represents the number of ways to choose m objects from a set of n objects without considering the order of selection.The formula for calculating the number of combinations is:
where n! (n factorial) is the product of all positive integers from 1 to n, m! is the product of all positive integers from 1 to m, and (n-m)! is the product of all positive integers from 1 to (n-m).The other options provided are not correct for this context:-
is not a standard notation for combinations.-
and
are not standard notations for combinations.-
is not a standard notation for combinations.-
is not a standard notation for combinations.