+0  
 
0
628
1
avatar

S = (1.96)2 x 85 x 0.5 (1- 0.5)/ (0.5)2 (85-1) + (1.96)2 0.5 (1- 0.5)

 Sep 5, 2016
 #1
avatar+29 
0

S= 27989.8

 Sep 5, 2016

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