1) Does anyone have an idea what formula is this for P(A) =n/N? a) Permutation b) Theorem c) Combination d) Probability 2) To find the number of permutations of 5 taken 2 at a time. Let r = 2 and n = 5 in the formula.  a) 20 b) 30 c) 35 d) 50 3) It is an arrangement of all part of a set of objects in a definite order. a) Probability b) Permutation c) Combination d) Factorial Notation 4) It is the collection or selection of set of objects in no particular order. a) Permutation b) Combination c) Probability d) Factorial Notation 5) Applying the formula of combination. Let n = 5 and r = 2. a) 720 b) 420 c) 120 d) 210

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