Sample Standard Deviation is a statistical measure that quantifies the amount of variation or dispersion in a set of data points. It helps to understand how much individual data points differ from the sample mean. A low sample standard deviation indicates that the data points are close to the mean, while a high value suggests greater variability. To calculate the sample standard deviation, you first find the mean of the data set, then determine the differences between each data point and the mean. These differences are squared, summed, and divided by the number of data points minus one. Finally, the square root of this result gives the sample standard deviation.