A smaller standard deviation value. The standard deviation (sd) is a single number that summarizes the variability in a dataset. Standard deviation is a statistical measure that describes how much variation or dispersion there is in a set of data points.
Deviation just means how far from the normal. A low sd—close to zero—indicates that the values tend to be close to the mean of the set, while a. Standard deviation is a statistical measure that shows how much a group of data is spread out or dispersed from its mean value (average).
It represents the typical distance between each data point and the mean. Standard deviation (sd) is a measure of the amount of variation in a set of values. Standard deviation may be abbreviated sd or std dev, and is most commonly represented in mathematical texts and equations by the lowercase greek letter σ (sigma), for the population. It tells you, on average, how far each score lies from the mean.
This free standard deviation calculator computes the standard deviation, variance, mean, sum, and error margin of a given data set. The standard deviation is a measure of how spreadout numbers are. The standard deviation is the average amount of variability in your dataset. Standard deviation is a statistical measurement that looks at how far discrete points in a dataset are dispersed from the mean of that set.
The higher the standard deviation, the more spread. Standard deviation is a statistical measure of variability that indicates the average amount that a set of numbers deviates from their mean.