If P(A)=0.2 and P(B)=0.3, the minimum possible value of P(A∪B) is:
A. 0.5
B. 0.2
C. 0.1
D. 0.3
Answer: Option D
Solution (By JKSSB Mock Tests)
Minimum occurs when one event is subset of the other; if B⊂A, then P(A∪B)=P(A)=0.2. But A cannot be larger than B? Actually min union is max(P(A),P(B)) = 0.3.
Assertion (A): The population of India is increasing but the decadal growth rate has declined between 2001-2011 compared to 1991-2001. Reason (R): The total fertility rate in India has been declining. Choose the correct option:
A.Both A and R are true, but R is not the correct explanation of A
B.A is false, R is true
C.A is true, R is false
D.Both A and R are true, and R is the correct explanation of A
No comments yet. Be the first to start the discussion!