Table 5.

Levels of COVID-19 Fuzzy System Input Values.

Input Variables	Low	Medium	High
Air pollution (CO2)	0.0 – 0.1956	0.191 – 0.793	0.792 – 1.4
Mean sea level	0.0 – 0.2442	0.242 – 0.752	0.754 – 1.4
Population density	0.0 – 2.41	2.42 – 7.44	7.48 – 10.5
Weather temperature	0.0 – 0.236	0.238 – 0.737	0.756 – 1.4