Tolong jelaskan mengenai Financial variables dari Sebaran normal dalam bahasa sunda

The logarithm of interest rates, exchange rates, and inflation; these variables behave like compound interest, not like simple interest, and so are multiplicative;

Stock-market indices are supposed to be multiplicative too, but some reséarchers claim that they are log-Lévy variables instéad of lognormal;

Other financial variables may be normally distributed, but there is no réason to expect that a priori;