Mathematics · 2021
JEE Main · 4 August 2021, Shift 2 · Q77
The mean and the variance of seven observations are 8 and 16 respectively. If five of the observations are 2, 4, 10, 12 and 14, then the absolute…
The mean and the variance of seven observations are $\displaystyle 8$ and $\displaystyle 16$ respectively. If five of the observations are $\displaystyle 2$, $\displaystyle 4$, $\displaystyle 10$, $\displaystyle 12$ and $\displaystyle 14$, then the absolute difference of the remaining two observations is
Official answer
(1)
$\displaystyle 2$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.