Given the following data from a zinc rougher: Table 1: Zinc Rougher data for Assignment 2. Note the particle size is in mesh; Wt% denotes weight percent of a particular stream Feed Concentrate Tailings Size, mesh Wt% % Zn Wt% %Zn Wt% %Zn 65 3.09 2.55 28.50 100 6.96 13.65 13.57 13.95 8.65 150 200 0.65 0.60 0.44 10.98 11.55 9.17 9.02 8.62 8.57 8.95 270 8.34 13.50 13.09 14.30 8.85 14.11 15.10 12.83 8.03 12.87 8.11 26.40 42.60 42.20 40.30 39.30 35.30 29.900 31.3 13.00 400 500 -500 12.97 6.93 23.32 0.40 0.39 0.33 0.29 0.67 6.56 22.36 Questions 1. Calculate the overall Zn assay for each stream? 2. Calculate the size-by-size recovery? 3. Plot Rx,Zn vs x using the midpoint of the size range as x. (Note: to calculate x first convert mesh to um, take x as the arithmetic mean of the range and plot the x's on a log-scale). ? 4. What is the total zinc recovery