Standard Deviation
The most frequent measure of variability is standard deviation (SD).
No, standard deviation is not a type of criminal offence, nor the weirdness of some people around you :)
No, standard deviation is not a type of criminal offence, nor the weirdness of some people around you :)
SD is the average amount of variability in a set of scores.
It is calculated by the average distance from the mean.
The larger the SD, the more spread out the scores of that group is (i.e. the more different individuals in that group are).
It is calculated by the average distance from the mean.
The larger the SD, the more spread out the scores of that group is (i.e. the more different individuals in that group are).