7 - 7 wrestlers predicted win percentage against 8 - 6 opponent: 48.7\n7 - 7 wrestlers actual win percentage…

7 - 7 wrestlers predicted win percentage against 8 - 6 opponent: 48.7\n7 - 7 wrestlers actual win percentage against 8 - 6 opponent: 79.6\nso the 7 - 7 wrestler, based on past outcomes, was expected to win just less than half the time. this makes sense; their records in this tournament indicate that the 8 - 6 wrestler is slightly better. but in actuality, the wrestler on the bubble won almost eight out of ten matches against his 8 - 6 opponent. wrestlers on the bubble also do astonishingly well against 9 - 5 opponents:\n7 - 7 wrestlers predicted win percentage against 9 - 5 opponent: 47.2\n7 - 7 wrestlers actual win percentage against 9 - 5 opponent: 73.4\nthe authors use the statistics in this excerpt to\n○ describe the complexity of sumo scorekeeping.\n○ explain in detail the intricacies of sumo wrestling.\n○ make a case for the idea that sumo wrestling is rigged.\n○ show the similarities in japanese sumo and american wrestling.

7 - 7 wrestlers predicted win percentage against 8 - 6 opponent: 48.7\n7 - 7 wrestlers actual win percentage against 8 - 6 opponent: 79.6\nso the 7 - 7 wrestler, based on past outcomes, was expected to win just less than half the time. this makes sense; their records in this tournament indicate that the 8 - 6 wrestler is slightly better. but in actuality, the wrestler on the bubble won almost eight out of ten matches against his 8 - 6 opponent. wrestlers on the bubble also do astonishingly well against 9 - 5 opponents:\n7 - 7 wrestlers predicted win percentage against 9 - 5 opponent: 47.2\n7 - 7 wrestlers actual win percentage against 9 - 5 opponent: 73.4\nthe authors use the statistics in this excerpt to\n○ describe the complexity of sumo scorekeeping.\n○ explain in detail the intricacies of sumo wrestling.\n○ make a case for the idea that sumo wrestling is rigged.\n○ show the similarities in japanese sumo and american wrestling.

Answer

Brief Explanations:

The text shows significant differences between predicted and actual win - percentages of 7 - 7 wrestlers against 8 - 6 and 9 - 5 opponents. This large gap can be used to suggest something is amiss, like the idea that the sport (sumo wrestling here) might be rigged. The other options are not supported by the given statistics.

Answer:

make a case for the idea that sumo wrestling is rigged.