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.
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.
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(6+7+3+7+2)/5
= 25/5
= 5
Sona=6
Karina=7
Omar=3
Mustafa=7
Amie=2
Therefore,their standard deviation=
=
=5
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