MCQ
જો ઘટનાઓ $A$ અને $B$ માટે $P(A|B) = P(B|A) $ હોય, તો
- A$A \subset B$ but $A \neq B$
- B$A=B$
- C$P(A)=P(B)$
- D$A \cap B=\phi$
$\Rightarrow \frac{\mathrm{P}(\mathrm{A} \cap \mathrm{B})}{\mathrm{P}(\mathrm{B})}=\frac{\mathrm{P}(\mathrm{A} \cap \mathrm{B})}{P(A)}$
$\Rightarrow \mathrm{P}(\mathrm{A})=\mathrm{P}(\mathrm{B})$
Thus, the correct answer is $C$.
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