Type-2 Fuzzy Expert System Approach for Decision-Making of Financial Assets and Investing under Different Uncertainty

Table 1

Summary of ETFs statistics by continents.

Continent	Europe	USA	Asia-Pacific	Emerging markets
Return	16.91%	65.59%	23.46%	7.88%
Std. deviation	14.53%	13.08%	19.89%	18.36%
TER	0.40%	0.11%	0.56%	0.54%
R^2	0.76	0.94	0.76	0.82
Beta	0.95	0.99	1.11	1.01