1. Which of the following would require looking at variability, rather than simply calculating an average? (Check all that apply.)

		Looking at the difference between one college's tuition and the average college tuition.
		Assessing if a specific college's tuition is more extreme, relative to other colleges' tuition rates and how much different tuitions are in general.
		Determining what is a normal amount by which people's scores on a math test tend to vary from each other.
		Calculating if college students who are in a mentoring program have, on average, higher GPAs than students who are not in a mentoring program.