Which of the following is true of the least-squares regression line y= b1x+bo? Select all that apply. O A. The least-squares regression line always contains the point (x,y). O B. The least-squares regression line always contains the point (0,0). DC. The predicted value of y, y, is an estimate of the mean value of the explanatory variable for that particular value of the response variable O D. The least-squares regression line maximizes the sum of squared residuals. O E. The least-squares regression line minimizes the sum of squared residuals. O F. The sign of the linear correlation coefficient, r, and the sign of the slope of the least-squares regression line, b, are the same. O G. The predicted value of y. y, is an estimate of the mean value of the response variable for that particular value of the explanatory variable
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
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