A soil sample was collected from a stack of materials prepared for a compaction site and a sieve analysis was performed to classify the soil. Shown in the table are the results of the sieve analysis. a) Please draw the grain size distribution curve. b) Find an effective size, and average size of the soil particles, c) Calculate Cu and Ce. points US sieve number 4 (4.75 mm) 10 (2.00 mm) 20 (0.850 mm) 40 (0.425 mm) 100 (0.150 mm) 200 (0.075mm) Pan Mass retained (g) 85.2 22.5 81.7 140.3 147.6 60.2 55.2