Let E and F be events with P(E) 
 53
, P(F) 
=103
 and P (E ∩ F) = 1
5 Are
E and F independent © NCERT
not to be republished
PROBABILITY      547
7 Given that the events A and B are such that P(A) = 1
2 ,  P(A ∪ B) = 3
5  and
P(B) = p