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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 4 · Set 1 · Q19
Assertion ( A ): If A and B are two events such that P ( A ∩ B )=0, then A and B are independent events. Reason (R): Two events are independent if…
Assertion ( $\displaystyle \mathrm{A}$ ) : If A and B are two events such that $\displaystyle \mathrm{P}(\mathrm{A} \cap \mathrm{B})=0$, then A and $\displaystyle \mathrm{B}$ are independent events. Reason $\displaystyle (R)$ : Two events are independent if the occurrence of one does not effect the occurrence of the other.
Official answer
(D)
Assertion (A) is false, but Reason (R) is true.
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CBSE Class 12 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.