Sample mean and covariance
= Sample mean and covariance
{wiki=Sample_mean_and_covariance}
Sample mean and covariance are statistical measures that help describe the properties of a dataset. \#\#\# Sample Mean The **sample mean** is a measure of central tendency that represents the average of a set of observations. It is calculated by summing all the values in the sample and then dividing by the number of observations in that sample.