What is the defining characteristic of a random sample? it ensures that every person in the sample represents a specific racial, gender, or religious group. it consists of an equal number of men and women. it is created by asking questions of people who randomly happen to walk by. it gives each person in the population of interest an equal chance of being chose?

Suppose you are a freshmen in college and you have not declared a major. one reason you enrolled at your respective college was the school's vibrant social life. at the same time, you want to balance your academic life because you know that your grades will matter for graduate school or job applications.you decide to forgo partying for two hours to study for an upcoming economics exam. in your first semester's principles of economics class, you learn that the enjoyment you would have received from partying is an example of a(n)