Measures Of Variability Flashcards
1
Q
What does standard deviation mean?
A
It measures how spread out the values in a sample are around the mean.
2
Q
Standard deviation formula
A
S^2=kvela xi s gamovaklot mean avikvanot titoeuli kvadratshi shevajamot da gavkot n-1 ze
3
Q
What is coefficient of variation?(CV)
A
It shows the standart deviation as a percentage of the mean.
4
Q
CV formula
A
CV=(s/mean)*100%
