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Choose the correct option.
If P(A) = 4/5 and P(A ∩ B) = 7/(10), then the value of P(B/A) is:
If $P(A) = \frac{4}{5}$ and $P(A \cap B) = \frac{7}{10}$, then the value of $P(B/A)$ is:
- (a)$\frac{1}{8}$
- (b)$\frac{4}{7}$
- (c)$\frac{5}{7}$
- (d)$\frac{7}{8}$
Answer
Answer
Correct option: (d)
Answer: (d) $\frac{7}{8}$
$P(B/A) = \frac{P(A \cap B)}{P(A)} = \frac{7/10}{4/5} = \frac{7}{8}$.