Question

If A= 30 and B =90 what is P(A|B)
P(B|A)

Answer 1

Use the following formulas:

\[\huge P(A|B) = \frac{P(A \cap B)}{P(B)}\]

\[\huge P(B|A) = \frac{P(A \cap B)}{P(A)}\]

And in case of Independent Events:

\[\huge P(A \cap B) = P(A).P(B)\]