Mathematics · 2024
JEE Main · 4 April 2024, Shift 2 · Q19
If the mean of the following probability distribution of a radam variable X: is 46/9, then the variance of the distribution is
If the mean of the following probability distribution of a radam variable X :
is $\displaystyle \frac{46}{9}$, then the variance of the distribution is
| X | $\displaystyle 0$ | $\displaystyle 2$ | $\displaystyle 4$ | $\displaystyle 6$ | $\displaystyle 8$ |
| P(X) | $\displaystyle a$ | $\displaystyle 2 a$ | $\displaystyle a+b$ | $\displaystyle 2 b$ | 3b |
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \frac{566}{81}$
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JEE Main 2024 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.