4.5 Peak Area Ratio im inn in w in y = 0.2496x + 0.012 R= = 0.9986 0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 concentration )ml How do I estimate the concentration of the below samples using this graph? (Calculating the concentration on each of the samples separately). What would the mean and standard deviation be for these values? concentration peak area 15 peak area peak area ratio (PA/IS) Sample I 1114 1343 0.829486225 Sample II 1086 1305 0.832183908 Sample III 734.0 890.7 0.824101796 Sample IV 1099 1366 0.804538799