Time series forecasting

A time series is a time-ordered value of a predicted quantity. In practice, time series forecasting is most often used because of the availability of the initial data and the obviousness of the way to obtain a solution. To predict using regression or other models, it is necessary first, on the basis of theoretical ideas, […]

Checking the significance of the regression equation

After the regression equation is constructed and its accuracy is estimated using the coefficient of determination, the question remains how this accuracy is achieved and, accordingly, whether this equation can be trusted. The fact is that the regression equation was built not on the general population, which is unknown, but on a sample from it. […]

Currency account: concept, mode

Currency funds of enterprises and entrepreneurs are stored in a foreign exchange account with authorized banks of the Republic of Belarus. At the same time, enterprises, entrepreneurs, as well as individuals independently choose a bank for currency settlement and cash services. A foreign exchange account is a bank account in foreign currency, opened in accordance […]