Question

If A and B are
two events such
that P(A)=0
and
P(B|A)=1,
then
1)ACB
2)BCA
3)B=0
4)A=0 which of these is true​

Answer 1

Step-by-step explanation:

Correct option is

B

1,0

Note that P(B/A)=

P(A)

P(A∩B)

(i) If A is subset of B, then A∩B=A⇒P(A∩B)=P(A)

Thus P(B/A)=

P(A)

P(A)

=1

(ii) If A∩B=Φ, then P(A∩B)=0

So P(B/A)=

P(A)

0

=0