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A. (P – S)/n
B. 1 – (P/S)1/m
C. (m/n) (P – S)
D. [2 (n – m + 1)/n(n + 1)]. (P – S)

Correct Answer: D. [2 (n – m + 1)/n(n + 1)]. (P – S)

Last Updated: February 12, 2019