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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 3 · Set 3 · Q5
X and Y are independent events such that P ( X ∩ Ȳ)=2/5 and P ( X )=3/5. Then P ( Y ) is equal to:
X and Y are independent events such that $\displaystyle \mathrm{P}(\mathrm{X} \cap \overline{\mathrm{Y}})=\frac{2}{5}$ and $\displaystyle \mathrm{P}(\mathrm{X})=\frac{3}{5}$. Then $\displaystyle \mathrm{P}(\mathrm{Y})$ is equal to :
Official answer
(C)
$\displaystyle \frac{1}{3}$
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CBSE Class 12 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.