In the context of national level sports competitions, in a province there are four athletes who will train and who will be sent to the national level 2 people as representatives of the regional level. during exercise as follows Name Average time standard deviation final selection 10.36 3 10.1 10 3.5 9.5 C 9.6 2.5 9.5 10.2 2 10 determine who will be sent to the central level? F=2,4,6,10,5,2,1, all deviation formulas

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