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Q13. The expression (n-1)!(n-2)! / (n!)2 reduces to:

Mathematics — Permutation, Combination and Probability — Question 13 of 302

A. 1 / (n(n-1))
B. 1 / (n2(n-1))
C. 1 / n2
D. 1 / n

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The expression (n-1)!(n-2)! / (n!)2 reduces to: | Mathematics MCQ #13 | Examora | Examora