The Relationship between Two Quantitative Variables — Quiz
Question 7 • Statistical Reasoning
Real estate agents in a county with a large, urban residential area noticed that families with larger incomes tend to live in homes that sell for higher prices. What are the explanatory variable and response variable for this relationship?
Answer
A
Explanatory variable: type of residential area Response variable: price of the home
B
Explanatory variable: family income Response variable: price of the home
C
Explanatory variable: price of the home Response variable: type of residential area
D
Explanatory variable: price of the home Response variable: family income
Explanation
The explanatory variable is the factor used to explain or predict changes in another variable. Here, family income is related to the price of the home, so income is explanatory and home price is the response. Choice B correctly identifies family income as the explanatory variable and the home's price as the response variable.
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