The sample standard deviation is a measure of the spread or variability of data in a sample. It tells us how much the individual data points deviate from the mean of the sample.
Related terms
Population Standard Deviation: The population standard deviation measures the variability in an entire population rather than just a sample.
Variance: Variance is another measure of variability that represents the average squared difference between each data point and the mean.
Range: Range is a measure of variability that represents the difference between the largest and smallest values in a dataset.