Answer:
Convenience sample
Explanation:
A convenience sample in a research study is made up of people who can be reached easily and are conveniently available to participate. Convenient sampling is a type of non-probability sampling, which means that not everyone in a population had a chance to be sampled. In this research, the real population was the people that went to that specific mall and not the entire city's population. The advantage of convenience sampling is basically its low cost.
