A study of college graduates involves three variables: income level, job satisfaction, and one-way commute times to work. List some ways the variables might be confounded. (Select all that apply.)

One-way commute times may be long because affordable housing is distant from the job.

A working spouse could affect all three variables.

People might be very satisfied with their career as long as the income is high.

People may have a career following their passion, but have a low income or a long commute.

Explanation:

As we know that the study in college for graduation generally includes the three types of variables i.e. level of the income, job satisfaction and the one way commute

Now there are some ways that may be cofounded such as the one way commute could belong as if the house is far from the job, for the working spouse the above three variables could be impacted, when the income of the people are high they feel very satisfied and they follow their passion but they have the low income or long commute travelled at the same time

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