Mathematics · 2022
JEE Main · 26 June 2022, Shift 1 · Q18
The mean of the numbers a, b, 8,5,10 is 6 and their variance is 6.8. If M is the mean deviation of the numbers about the mean, then 25 M is equal to:
The mean of the numbers $\displaystyle \mathrm{a}, \mathrm{b}, 8,5,10$ is $\displaystyle 6$ and their variance is $\displaystyle 6.8$ . If M is the mean deviation of the numbers about the mean, then $\displaystyle 25$ M is equal to :
Official answer
(1)
$\displaystyle 60$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.