Question

Sona, Karina, Omar, Mustafa and Amie obtained marks of 6, 7, 3, 7, 2 on a standardized test respectively. Find the standard deviation of their scores.

Answer 1

Standard deviation =
(6+7+3+7+2)/5
= 25/5
= 5

Answer 2

Hello mate,here is your answer.
Sona=6
Karina=7
Omar=3
Mustafa=7
Amie=2
Therefore,their standard deviation=
$\frac{6 + 7 + 3 + 7 + 2}{5}$
=
$\frac{25}{5}$
=5
Hope it helps!