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    Binomial Coefficient

    Basic definition

    The binomial coefficient is a notation and function giving the number of ways of picking k unordered outcomes from n possibilities, also known as a combination or combinatorial number.

    Detailed definition

    The binomial coefficient (n k) is the number of ways of picking k unordered outcomes from n possibilities, also known as a combination or combinatorial number. The symbols _n C_k and (n k) are used to denote a binomial coefficient, and are sometimes read as "n choose k."

    Related Wolfram Language symbol

    Binomial

    Educational grade level

    college level