1.	Find the standard deviation of the data in the stem-and-leaf plot to the nearest hundredth.
		A.	217.00	B.	228.50
		C.	10.72	D.	11.74
		Hint
	2.	Find the standard deviation of the set {15, 42, 30, 22, 19, 32} to the nearest hundredth.
		A.	9.91	B.	10.03
		C.	9.05	D.	10.14
		Hint
	3.	The scores on a national achievement test are normally distributed with a mean of 50 and a standard deviation of 10. Out of a group of 200 students, how many would you expect to score more than 70?
		A.	1	B.	5
		C.	32	D.	10
		Hint
	4.	Which of the graphs will have the lowest standard deviation?
		A.		B.
		C.		D.
		Hint
	5.	Compute the variance and standard deviation for the set of {7,7,7,7}. Round to the nearest tenth.
		A.	0; 28	B.	0; 7
		C.	7; 0	D.	0; 0
		Hint