Based on the characteristics provided in the chart:
- The ecclesia is described as an assembly where members had a voice, voted on issues, and were chosen by lot, which indicates that it functioned as a democracy.
- The Thirty are noted as tyrannical rulers who made new laws and used force, indicating that this group represents an oligarchy.
- The Mycenaean Palace features a palatial society led by a wanax (king) and a council called the Gerousia, which suggests a monarchy.
Therefore, the accurate statement that describes the type of government based on the chart is:
The Thirty was an oligarchy, the ecclesia was a democracy, and the Mycenaean Palace was a monarchy.