The varience of data 1001, 1003, 1006, 1007, 1009, 1010 is - - Vidyadip

MCQ

The varience of data $1001, 1003, 1006, 1007, 1009, 1010$ is -

✓
$10$
B
$15$
C
$20$
D
$50$

✓

Answer

Correct option: A.

$10$

a
Varience remains unchanged on subtraction

varience $=\frac{1^{2}+3^{2}+6^{2}+7^{2}+9^{2}+10^{2}}{6}-\left(\frac{1+3+6+7+9+10}{6}\right)^{2}$

$=10$

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