1.	What is the difference between the highest and the lowest values?
		A.	100	B.	84
		C.	75	D.	80
		Hint
	2.	Based on the line plot, what is the lowest score?
		A.	21	B.	71
		C.	100	D.	75
		Hint
	3.	Based on the line plot, how many students scored above 90 or below 50?
		A.	4	B.	5
		C.	10	D.	9
		Hint
	4.	You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam for a mean of 80?
		A.	93	B.	80
		C.	100	D.	97
		Hint
	5.	If the number 178,651 is rounded to 179,000 and plotted on a stem-and-leaf plot as 17|9, how would you display 151,205?
		A.	1|51	B.	151|2
		C.	15|1	D.	15|2
		Hint