Sample Variance
Sample variance is a statistical measure that describes the spread of data within a sample. It is one of the most commonly used measures of variability in statistics and is used to calculate the degree to which individual data points vary from the sample mean.
In this article, we will provide a comprehensive overview of sample variance, including its definition, formula, properties, and applications. We will also discuss the advantages and disadvantages of using sample variance, as well as common pitfalls that can occur when interpreting its results.