1.	Find the standard deviation of the set {4, 7, 3, 8, 2, 6, 5, 8, 3, 2} to the nearest hundredth.
		A.	2.35	B.	2.23
		C.	2.46	D.	2.00
		Hint
	2.	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.	32	B.	1
		C.	10	D.	5
		Hint
	3.	Compute the variance and standard deviation for the set of {7,7,7,7}. Round to the nearest tenth.
		A.	7; 0	B.	0; 7
		C.	0; 28	D.	0; 0
		Hint
	4.	Compute the variance and standard deviation for the set of {3, 4, 4, 7, 9, 9, 12, 16}. Round to the nearest tenth.
		A.	15.8; 4.0	B.	4.2; 2.0
		C.	16.5; 4.1	D.	17.5; 4.2
		Hint
	5.	Compute the variance and standard deviation for the set of {284, 298, 302, 305, 310, 314, 321, 331, 337, 348}. Round to the nearest tenth.
		A.	337.9; 18.4	B.	341.0; 18.5
		C.	289.2; 17.0	D.	335.7; 18.3
		Hint