Let the Mean and Variance of five observations xᵢ, i = 1, 2, 3, 4… | JEE Main 2025 Mathematics PYQ

MCQMediumJEE Main 2025 · 3 April, Shift 2Measures of Dispersion

Let the Mean and Variance of five observations $x_i$ , $i = 1, 2, 3, 4, 5$ be $5$ and $10$ respectively. If three observations are $x_1 = 1, x_2 = 3, x_3 = a$ and $x_4 = 7, x_5 = b$ with $a > b$ , then the Variance of the observations $n + x_n$ for $n = 1, 2, 3, 4, 5$ is

A
$17$
B
$16.4$
C
$17.4$
D
$16$

Answer & step-by-step solution

Practice more Measures of Dispersion questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Measures of Dispersion

Answer & step-by-step solution

Practice more Measures of Dispersion questions

Related questions