1. For this question, refer to the third tab, Trader Activity. Suppose that 9/1 is the first day of trading for this particular contract so that there was no open interest on 8/31. 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 9/14. You can assume that on any particular day, a trader makes trades in only one direction, so that the daily numbers represent that traders volume.

9/23/20 9/8/20 6 29 81 49 2 Trader ID 73470 154857 226111 343311 436358 453227 538815 567545 809026 909339 9/1/20 (95) 98 54 119 (115) (100) 67 (118) 9/2/20 (20) 42 (54) (112) (99) 85 (30) 60 (29) 157 9/3/20 (62) (75) (10) (59) 100 (94) 37 47 (9) 125 9/4/20 (70) (50) (84) 47 (6) 64 49 (97) 4 92 9 9/9/20 80 (77) (38) (97) (16) (10) 9 (76) (20) 245 9/10/20 9/11/20 12 (78) 5 31 (1) (17) 90 103 (23) (66) (86) (67) 57 75 (43) (53) 44 (80) 9/14/20 9/15/20 107 (82) 33 (4) 3 91 (111) (14) (6) (44) 40 (91) 37 9 54 32 68 (149) 16 9/16/20 2 21 (88) 70 (7) 7 (25) (8) 99 (71) 16 9/17/20 9/18/20 9/21/20 (55) (4) (86) (72) 16 (95) 28 (9) 89 (1) (91) 111 (12) (6) (43) (58) 5 22 7 57 49 (87) 91 (8) 49 79 16 150 (142) 9/22/20 (14) (89) (1) 109 76 (54) 77 50 40 (194) 9/24/20 (66) (88) 111 79 (40) 110 (41) (80) 78 (49) (4) (4) 111 43 (39) (85) (100) 9/25/20 91 29 (61) 69 118 35 (16) 14 (101) (178) 20 (23) (27) 57 (165) 61 11 41 29 143 (26)