积矩相关系数
本章介绍积矩相关系数（Product Moment Correlation Coefficient），也称为皮尔逊相关系数（Pearson Correlation Coefficient），这是一种衡量两个连续变量之间线性关系强度和方向的统计量。通过本章学习，你将掌握如何计算、解释和应用积矩相关系数，以及理解其在统计学分析中的重要性。
This chapter introduces the Product Moment Correlation Coefficient, also known as Pearson Correlation Coefficient, which is a statistical measure of the strength and direction of the linear relationship between two continuous variables. Through this chapter, you will learn how to calculate, interpret, and apply the product moment correlation coefficient, as well as understand its importance in statistical analysis.