Question

What is the primary difference between a simple linear regression and a multiple linear regression?There is more than one response variableThere is more than one explanatory variableThe correlation coefficient is above 0.8The coefficient of determination is above 0.8

Answer 1

Remember that

Simple linear regression has only one x and one y variable. Multiple linear regression has one y and two or more x variables.

therefore

The answer is

There is more than one explanatory variable