1.	What is the difference between the highest and the lowest values?
		A.	75	B.	100
		C.	80	D.	84
		Hint
	2.	How many measurement classes are represented on the histogram?
		A.	44	B.	14
		C.	9	D.	70
		Hint
	3.	A histogram is a graph in which the data are organized into equal _______.
		A.	bars	B.	elements
		C.	intervals	D.	tallies
		Hint
	4.	Which interval has the most values?
		A.	50-60	B.	80-90
		C.	60-70	D.	70-80
		Hint
	5.	Find the mean of the data in the stem-and-leaf plot.
		A.	99	B.	77
		C.	78	D.	67
		Hint