Solve the following equation. 
Definitions:
Mall Intercept Interviews
A qualitative research method where interviewers approach shoppers in malls to ask questions or conduct surveys about their behaviors or opinions.
Shopping Centers
A group of retail stores and other commercial establishments physically connected and designed to serve the shopping needs of the surrounding area.
Scientifically Selected
Scientifically selected implies a choice or decision made based on systematic and empirical methods of investigation, often involving controlled experiments or statistical validation.
Independent Variable
A variable in an experiment or study that is manipulated or changed to observe its effect on a dependent variable.
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