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I cant to get the curve from below code, is there any mistakes from below codes ? thanks r0 = {0.9, 0.8333}; r1 = {0.8722, 0.8111}; r2 = {0.8528, 0.7667}; r3 = {0.8472, 0.7167}; r4 = {0.8583, 0.6667}; r5 = {0.8861, 0.6194}; r6 =...