Problem 136SE

5.1 FUNDAMENTALS PRINCIPLE OF COUNTING I. ACTORIALS a. The formula for factorial: n! = (n)(n1)(n2) II. PERMUTATION: a. Permutation: a set of objects in which position (or order) is important b. Formula: III. COMBINATION: a. Combination: a set of objects in which position (or order) is NOT important b. Combination is always SMALLER or EQUAL to the number of permutations c. Formula: