Correlation and Regression Data a What is the explanatory va

Correlation and Regression Data

a.) What is the explanatory varibale?

b.) What is the repsonse variable?

c.) What does the slope mean in this context?

d.) What does the Y intercept mean in this context? Is it meaningful?

Correlation and Regression Data

a.) What is the explanatory varibale?

b.) What is the repsonse variable?

c.) What does the slope mean in this context?

d.) What does the Y intercept mean in this context? Is it meaningful?

Solution

a) An independent variable is an explanatory variable.

Suppose y = mx is an equation where m is the slope of the line.

Here, x is an independent variable on which y depends.

b)Variables of interest or those are measured or observed are called dependent variables or response vaariable.

In the above example, y is the response variable.

c)Slope means the change in dependent variable value w.r.t independent variable value.

m is the slope in the above example.

d)y -intercept is the value of y when it cuts x-axis i.e when x = 0.