Let the six numbers a₁, a₂, a₃, a₄, a₅, a₆ be in A.P., and a₁ + a… | JEE Main 2023 Mathematics PYQ

MCQMediumJEE Main 2023 · 24 January, Shift 2Measures of Dispersion

Let the six numbers $a_1, a_2, a_3, a_4, a_5, a_6$ be in A.P., and $a_1 + a_3 = 10$ . If the mean of these six numbers is $\frac{19}{2}$ and their variance is $\sigma^2$ , then $8\sigma^2$ is equal to:

A
$220$
B
$210$
C
$200$
D
$105$

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