If P(A) = \(\frac{3}{10}\), P(b) = \(\frac{2}{5}\) and P(A ∪ B) = \(\frac{3}{5}\), then P(B|A) + P(A|B) equals
A. \(\frac{1}{4}\)
B. \(\frac{1}{3}\)
C. \(\frac{5}{12}\)
D. \(\frac{7}{12}\)
Answer:D
If P(A) = \(\frac{3}{10}\), P(b) = \(\frac{2}{5}\) and P(A ∪ B) = \(\frac{3}{5}\), then P(B|A) + P(A|B) equals
A. \(\frac{1}{4}\) B. \(\frac{1}{3}\) C. \(\frac{5}{12}\) D. \(\frac{7}{12}\)