You may believe that the gender of a salesperson influences the sales of cars. the best way to incorporate this predictor is by group of answer choices

a. none of these answers are correct.
b. using a single dummy variable in a regression model
c. running two separate regressions, one for females and one for males.
d. using two dummy variables in a regression model

The correct option is (b)

Using a single dummy variable in a regression model

Step-by-step explanation:

A regression model is a model that measures the relationship between a dependent variable and one or more independent variables. In this question the dependent variable y is the sales of the car and the independent variable is the choice of the gender of a salesperson, Which is single dummy variable.

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step-by-step explanation: