Design a flow injection system for determining lead in the aqueous effluent from an industrial plant

Design a progress injection arrangement for determining transfer in the aqueous copious from an industrial settle naturalized on the rise of transfer ions after a while a carbon tetrachloride disconnection of dithizone, which reacts after a while Pb21 to form an intensely colored consequence. The trustworthy values for the sets of grounds in Problem a1-1 are as follows: A, 61.52; B, 3.28; C, 12.23; and D, 1.75. Find (a) the absolute blunder for the average of each set and (b) the percent referring-to blunder for each mean.