Question

Let 𝑀 and 𝑁 be events defined on the sample space 𝑆. If 𝑃(𝑀) = $\frac{1}{3}$ and 𝑃(𝑁𝑐 ) = $\frac{1}{4}$ then which one of the following is necessarily CORRECT?

• A. M and N are disjoint
• B. M and N are not disjoint
• C. M and N are independent
• D. M and N are not independent

Answer 1

Answer: (B)

M and N are not disjoint

Answer 2

The correct option is (B): M and N are not disjoint