Answer: Subjective Method
Explanation: Assigned probability based on judgement or assertion is termed as Subjective. Subjective probability relies on an individual's personal perception or idea that an event will occur or otherwise. Subjective probability isn't based no any thorough research, scientific finding or market analysis, It is purely based on individual judgement and therefore it differs from one individual to another.
For instance, if an individual opines that it will rain tomorrow without accessing weather or any related information, then it's a subjective judgement.
From 10th to 13th century, Chinese farming in the South China region was increasingly commercialized.
Explanation:
There was a burgeoning increase in trade during that time. This meant that the agriculture of china was at that time
-- commercialized to a great extent making cash crops more than the ones needed for subsistence.
-- using the cash crops and trading with northern china
--use of old tools but with some moderns arrangements like the till.
--use of a manure style that would be copied across the world
--finding of trade networks in collaboration with south east Asia.
-- a network of multi season crops spread across the land.
