Answer:
A representitive sample can be attained if he looks at the age and gender of the people going to the movies.
Step-by-step explanation:
There are two types of variables-independent and dependent. Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.
Hope this helps! :)
