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• • <br /> EC <br /> r� _ ( <br /> �j W. <br /> where: <br /> • c = weight of particular component <br /> • w = sum of all component weights <br /> • for i = 1 to n, where n = number of selected samples <br /> • for j = 1 to m, where m = number of components <br /> For example, the following simplified scenario involves three samples. For the <br /> purposes of this example, only the weights of the component carpet are <br /> shown. <br /> Sample 1 Sample 2 Sample 3 <br /> Weight (c) of carpet 5 3 4 <br /> Total Sample Weight (w) 80 70 90 <br /> _ 5 +3 +4 _ <br /> r — 0.05 <br /> 80 + 70 + 90 <br /> To find the composition estimate for the component carpet, the weights for <br /> that material are added for all selected samples and divided by the total <br /> sample weights of those samples. The resulting composition is 0.05, or five <br /> percent (5 %). In other words, five percent (5 %) of the sampled material, by <br /> weight, is carpet. This finding is then projected onto the stratum being <br /> examined in this step of the analysis. <br /> Franchise Agreement for Collection Services with Recology San Mateo County Attachment E -2 <br /> Redwood City Page 9 of 19 <br />