Mathematics · 2020
JEE Main · 5 September 2020, Shift 1 · Q68
The mean and variance of 7 observations are 8 and 16, respectively. If five observations are 2, 4, 10, 12, 14, then the absolute difference of the…
The mean and variance of $\displaystyle 7$ observations are $\displaystyle 8$ and $\displaystyle 16$, respectively. If five observations are $\displaystyle 2$, $\displaystyle 4$, $\displaystyle 10$, $\displaystyle 12$, $\displaystyle 14$, then the absolute difference of the remaining two observations is :
Official answer
(2)
$\displaystyle 2$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.