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Applied Mathematics · 2023 · 1 mark
CBSE 2023 · Central · Set 4 · Q12
If X is a Poisson variable such that P ( X =1)=2 P ( X =2), then P ( X =0) is:
If X is a Poisson variable such that $\displaystyle \mathrm{P}(\mathrm{X}=1)=2 \mathrm{P}(\mathrm{X}=2)$, then $\displaystyle \mathrm{P}(\mathrm{X}=0)$ is:
Official answer
(B)
$\displaystyle \frac{1}{\mathrm{e}}$
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CBSE Class 12 Applied 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.