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(\sum_{n=0}^10 (((10 choose n)*p^(n)*(1-p)^(10-n))/max(n,1)))*10*p-1.3=0
(\sum_{n=0}^10 (((10 choose n)*p^(n)*(1-p)^(10-n))/max(n,1)))*10*p-1.3=0
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