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A. P = ΣPnqn/Σpoqn
B. P = ΣPoqo/Σpnqn
C. P = ΣPnqo/Σpoqo
D. P = ΣPnqn/Σpoqo

Correct Answer: P = ΣPnqn/Σpoqn

Last Updated: June 18, 2019