Answer:
b
Explanation:
If Events A and B are independent of each other then Probabilty of Occurrence of Event A given that B has occured makes no change to Probabilty of Occurrence of A
Thus, P(A|B)=P(A)=0.3
Note :
It you want to go by formula …
P(A|B)=P(A and B)/P(B)..conditional probabilty
=P(A)*P(B)/P(B)…since A and B are independent events
=P(A)…since P(B) term gets cancelled from numerator and denominator
By definition P(A/B) = P(A.B)/P(B) = P(A).P(B)/P(B) = P(A) (as A, B are Independent events). Therefore;
P(A/B) = P(A) = 0.3 .