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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 1 · Q7
If E and F are two events such that P ( E )>0 and P ( F ) ≠ 1, then P (Ē / F̄) is
If E and F are two events such that $\displaystyle \mathrm{P}(\mathrm{E})>0$ and $\displaystyle \mathrm{P}(\mathrm{F}) \neq 1$, then $\displaystyle \mathrm{P}(\overline{\mathrm{E}} / \overline{\mathrm{F}})$ is
Official answer
(D)
$\displaystyle \frac{1-\mathrm{P}(\mathrm{E} \cup \mathrm{F})}{\mathrm{P}(\overline{\mathrm{F}})}$
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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.