Topological Models of Rough Sets and Decision Making of COVID-19

Table 2

Comparison between -approximations and -approximations.

	-approximations								-approximations
	-approximations				-approximations
				1				1				1
				0				1				1
				1				0				1
				0				0				0
				1/3				1				1
				1				1/3				1
				1/3				1/3
				1/3				1/3				2/3
				1				1/3				1
				1/3				1				1
				1/2				1/2				3/4
				1				1/2				1
				1/2				1				1
				1				1				1
				1				1				1