回帰分析(A form of statistical analysis used for forecasting. Regression analysis estimates the relationship between variables so that a given variable can be predicted from one or more other variables, かいき・ぶんせき)
回帰分析ツール(" A tool that performs linear regression analysis by using the "least squares" method to fit a line through a set of observations. A user can analyze how a single dependent variable is affected by the values of one or more independent variables.")
回帰直線(A straight line that represents the relationship between matched pairs of data from two collections of data. The equation of the line is derived using the least-squares method of linear regression)