Question 1047447
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Hi  
Excel Spreadsheet
	mean   (x-mean) (x-µ)^2
760	656	104	10816
700	656	44	1936
820	656	164	26896
580	656	-76	5776
620	656	-36	1296
3480			46720
696		46720/4	11680 Variance - small sample: divide by (5-1)
	sqrt(11680)	108.07 Standard Deviation
s = 108.1 round to one decimal point (one more than sample data)