Mathematics · 2024
JEE Main · 31 January 2024, Shift 1 · Q17
Three rotten apples are accidently mixed with fifteen good apples. Assuming the random variable x to be the number of rotten apples in a draw of two…
Three rotten apples are accidently mixed with fifteen good apples. Assuming the random variable $\displaystyle x$ to be the number of rotten apples in a draw of two apples, the variance of $\displaystyle x$ is
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \frac{40}{153}$
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