1. For this question, refer to the third tab, Trader Activity. Suppose that 3/2 is the first day of trading for this particular contract so that there was no open interest on 3/1. This table lists the members of a hypothetical clearing house and their trading activity. The ten traders are identified in the first column, with other columns representing a days worth of trading. Find the volume and open interest at the end of 3/13?

E 6 K 3/10/20 3/3/20 (20) 42 3/6/20 6 3/11/20 81 3/5/20 (70) (50) (84) 12 (78) 3/12/20 107 33 29 5 (54) 3/4/20 (62) (75) (10) (59) 100 (94) 3/2/20 (95) 98 54 119 (115) (100) 67 (118) 3/13/20 (82) (4) 91 (14) Trader ID 73470 154857 226111 343311 436358 453227 538815 567545 809026 909339 3/9/20 80 (77) (38) (97) (16) (10) 3 47 (1) 90 16 (66) (111) (6) (6) 16 31 (17) 103 (23) (86) 57 64 (112) (99) 85 (30) 60 (29) (44) 2 92 9 20 (23) (27) 57 (165) 40 37 37 49 9 (67) 54 47 (9) 125 (97) 4 143 61 (91) 9 32 (76) (20) 245 75 (53) (43) 11 (149) 29 157 - 44 (80) 68 E 6 K 3/10/20 3/3/20 (20) 42 3/6/20 6 3/11/20 81 3/5/20 (70) (50) (84) 12 (78) 3/12/20 107 33 29 5 (54) 3/4/20 (62) (75) (10) (59) 100 (94) 3/2/20 (95) 98 54 119 (115) (100) 67 (118) 3/13/20 (82) (4) 91 (14) Trader ID 73470 154857 226111 343311 436358 453227 538815 567545 809026 909339 3/9/20 80 (77) (38) (97) (16) (10) 3 47 (1) 90 16 (66) (111) (6) (6) 16 31 (17) 103 (23) (86) 57 64 (112) (99) 85 (30) 60 (29) (44) 2 92 9 20 (23) (27) 57 (165) 40 37 37 49 9 (67) 54 47 (9) 125 (97) 4 143 61 (91) 9 32 (76) (20) 245 75 (53) (43) 11 (149) 29 157 - 44 (80) 68