Назовите некоторые основные проблемы эконометрического

Question 1Nazovite some basic problems of econometric modelirovaniya.Vopros 2 What is the method that is most commonly used in the evaluation of the parameters: the linear model in econometrics? Question 3 As referred to indicators that characterizes the dispersion of the random variable around its mean? The question is 10Chto heteroscedasticity and autocorrelation of errors ?

answers to the 10 questions