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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 4 · Set 1 · Q17
For an event E, if P ( E )+ P (Ē)= q, then the value of q^2-4 is:
For an event E , if $\displaystyle \mathrm{P}(\mathrm{E})+\mathrm{P}(\overline{\mathrm{E}})=\mathrm{q}$, then the value of $\displaystyle \mathrm{q}^{2}-4$ is :
Official answer
(A)
$\displaystyle - 3$
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CBSE Class 10 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.