/** @var float The second central moment (or variance). **/
public $m2 = 0.0;
- /** @var float The least value in the the set. **/
+ /** @var float The least value in the set. **/
public $min = INF;
- /** @var float The most value in the set. **/
+ /** @var float The greatest value in the set. **/
public $max = NEGATIVE_INF;
/**
* Get the estimated standard deviation.
*
* The standard deviation of a statistical population is the square root of
- * its variance. It shows shows how much variation from the mean exists. In
+ * its variance. It shows how much variation from the mean exists. In
* addition to expressing the variability of a population, the standard
* deviation is commonly used to measure confidence in statistical conclusions.
*