Joanna is conducting a research project that examines whether parent's income impacts a child's choice of college. joanna thinks that parents who make a lot of money will have children who will attend private schools and parents who make little money will have children who will attend public schools. "child's choice of college" is the in joanna's project.

"child's choice of college" is the "dependent variable" in joanna's project.

A variable is any factor, attribute, or condition that can exist in varying sums or sorts. An examination for the most part has three sorts of variables: independent, dependent, and controlled.  

A dependent variable is the thing that you measure in the analysis and what is influenced amid the examination. The dependent variable reacts to the independent variable. It is called dependent since it "depends" on the independent variable. In a logical investigation, you can't have a dependent variable without an independent variable.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.