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Chapter 1: Problem 72

Describe an association between two variables. Give a confounding variable that may help to account for this association. People who own a yacht are more likely to buy a sports car.

Short Answer

Expert verified
Wealth is the confounding variable that may account for the association between people who own a yacht and are more likely to buy a sports car.

Step by step solution

01

Define Association

Firstly, define the association between two variables. In this case, the statement is implying that having a yacht positively affects the likelihood of buying a sports car.
02

Identify Possible Confounding Variables

Think about the factors external to the initial variables, which could indirectly influence the relationship between yacht owning and sports car buying. These could vary significantly since they are aspects that could affect both the owning of a yacht and the likelihood to buy a sports car.
03

Choose Appropriate Confounding Variable

Among those possible confounding variables, one can choose wealth as the confounding variable. Wealth can affect both owning a yacht and buying a sports car. People with larger disposable incomes or wealth are more likely to afford both a yacht and a sports car.

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