Question

if p(A)=0.4 P(B/A)is 0.35 P(AorB)=0.69then find P(B)​

Answer 1

P(B|A) = P(AnB)/P(A), so you know P(AnB).
Use P(AuB)=P(A)+P(B)-P(AnB).

1

Answer 2

Answer:

use =p(AU) =p(A+) p(B) - p(ANB)