If P(A) = \(\frac{2}{5}\), P(B) = \(\frac{3}{10}\) and P(A ∩ B) = \(\frac{1}{5}\), then P(A’|B’) . (P(B’|A’) is equal to
A. \(\frac{5}{6}\)
B. \(\frac{5}{7}\)
C. \(\frac{25}{42}\)
D. 1
Answer:B
If P(A) = \(\frac{2}{5}\), P(B) = \(\frac{3}{10}\) and P(A ∩ B) = \(\frac{1}{5}\), then P(A’|B’) . (P(B’|A’) is equal to
A. \(\frac{5}{6}\) B. \(\frac{5}{7}\) C. \(\frac{25}{42}\) D. 1