Question

Find the missing probability. P(A)=13/20,P(A∩B)=13/25,P(B|A)=? A. 21/100 B. 4/5 C. 1/5 D. 1/4

Answer 1

Answer:

Option (D) : 1 / 4

Step-by-step explanation:

We know that :

$P(A ∩ B) = P(A) * P(B|A)$

$P(B|A) = P(A ∩ B) / P(A) = \frac{13}{25} \times \frac{20}{13}$

$P(B|A) = \frac{4}{5}$