Question 869872
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Hi
x	n		x -67	n(x-67)^2	
52	2	104	-15	450	
57	4	228	-10	400	
62	5	310	-5	125	
67	10	670	0	0	
72	9	648	5	225	
77	5	385	10	500	
	35	2345	-15	1700	
	mean	67		50	Variance (n-1) Used
				7.071067812	SD
If Assignment calls for 35 rather than 34 to be used to determine Variance, answers would be:
Variance = 48.57143  and 6.969