Probability · Classes 11, 12
Conditional Probability
When P(B)>0.
FORMULA
\(P(A|B)=\frac{P(A\cap B)}{P(B)}\)
Try the calculator
Enter values to see a result and calculation steps.
Worked example
P(A∩B)=0.2,P(B)=0.5 ⇒ 0.4
Understand this formula
When P(B)>0.
Check measurement units, mathematical domains and rounding before applying any result in an examination.