Suppose you are interested in using regression analysis to estimate the number of crimes on campus using the following independent variables: percentage of students living on campus, number of students with a car on campus, the school is private, number of students that live on campus, number of campus police officers, and percentage of students that own a laptop. Which of the following independent variables are indicator (dummy) variables? Select all that apply.
Homework Answers
Answer
Dummy variable is a variable which can take only two conditions or two values.
Percentage and numbers are not dummy variables because these are numerical values which can take more than 2 values
therefore, option A, B, D, E and F are not dummy variables because these are either percentage or numbers
only option C is a dummy variable because “the school is private” can take only two values, either yes or no.
So, option C is correct
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