Refer to question 6 above, state true or false: (give reason for your answer)
(i) A and B are mutually exclusive
(ii) A and B are mutually exclusive and exhaustive
(iii) A = B’
(iv) A and C are mutually exclusive
(v) A and B’ are mutually exclusive.
(vi) A’, B’, C are mutually exclusive and exhaustive.
since 2 dice are thrown the sample space will consist of following outcomes

Here

And ![]()
(i) A and B are mutually exclusive (A ∩ B) = ϕ
Since A and B has no common element,
So, A & B are mutually exclusive.
Thus, the given statement is true.
(ii) A and B are mutually exclusive and exhaustive
A ∪ B =
= S
⇒ A ∪ B = S
And from (i) we have A and b are mutually exclusive
∴ A and B are mutually exclusive and exhaustive.
So, the statement is true.
(iii) A = B

Thus, the statement is true.
(iv) A and C are mutually exclusive
Here A ∩ C =
≠ ϕ
Since A and C have common element,
So, they are not mutually exclusive
So, the given statement is false.
(v) A and B’ are mutually exclusive.
A ∩ B’ = A ∩ A = A
∴ A ∩ B’ ≠ ϕ
So, A and B’ not mutually exclusive.
Hence, the given statement is false.
(vi) A’, B’, C are mutually exclusive and exhaustive.
Here A’ = 
B= 
And