Mathematics · 2021
JEE Main · 3 August 2021, Shift 1 · Q77
If Σ_i=1^16 a_i-6=8 and Σ_i=1^16 a_i-6^2=40, then the standard deviation of a_1, a_2, …, a_16 is
If $\displaystyle \sum_{i=1}^{16} a_i-6=8$ and $\displaystyle \sum_{i=1}^{16} a_i-6^2=40$, then the standard deviation of $\displaystyle a_1, a_2, \ldots, a_{16}$ is
Official answer
(2)
$\displaystyle \frac{3}{2}$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.