Question

If S = {a, b} find the value of P(b) if P(a)/P(b) = 5/11. Answer format: x/y

Answer 1

Answer:

GIVEN P(A)/P(B)=5/11

we know that P(A)=P(AB)P(B)

P(A)/P(B)=P(AB)

P(AB)=5/11

P(A/B)=P(AB)/P(B)=5/11=P(A)

P(A)P(B)=5/11

5/11P(B)=5/11

P(B)=1