1-)What is the difference between dependent variable and independent variable? Explain with a clear example.

2-)What is the difference between deterministic model and probabilistic (random) model? Explain with a clear example.

3-)Give an example of linear model in which the relationship between dependent and independent variables is non-linear.

4-)What is the difference between simple linear regression model and multiple linear regression model? Explain with equations.

5-)For the simple regression with a constant;

= + 1 +

Derive OLS estimators of 0 1