Mathematics · 2024
JEE Main · 4 April 2024, Shift 1 · Q20
Let α, β ∈ R. Let the mean and the variance of 6 observations -3,4,7,-6, α, β be 2 and 23, respectively. The mean deviation about the mean of these 6…
Let $\displaystyle \alpha, \beta \in \mathrm{R}$. Let the mean and the variance of $\displaystyle 6$ observations $\displaystyle -3,4,7,-6, \alpha, \beta$ be $\displaystyle 2$ and $\displaystyle 23$ , respectively. The mean deviation about the mean of these $\displaystyle 6$ observations is:
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \frac{13}{3}$
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JEE Main 2024 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.