Tag: statistical calculation

November 15, 2025 / Mohammed looti

SUM OF CROSS PRODUCTS

Introduction and Formal Definition The Sum of Cross Products (SCP), often referred to in statistical literature as the Sum of Products of Deviations, is a fundamental measure used to quantify the degree and direction of linear association between two distinct sets of variables, typically denoted as X and Y. This statistic serves as the essential […]

October 17, 2025 / Mohammed looti

MEAN SQUARE

MEAN SQUARE (STATISTICS) The Core Definition of Mean Square The Mean Square (MS) is a fundamental concept in inferential statistics, serving as an estimate of population variance derived from sample data. At its most fundamental level, the Mean Square is a numerical calculation achieved by dividing the total variability observed within a dataset—represented by the […]