A regression analysis has been conducted between the annual income (in 1000 euros) and the work experience (in years). The results are summarized below.

1. Define the independent and dependent variables. What can you say about the correlation between them.
2. Write the regression model and interpret the coefficients.
3. Estimate the average annual income of a person who has 15 years of work experience.

YEARS EXPERIENCE	SALARY (USD)
3	40000
5	48000
10	52000
14	63000
17	90000
20	100000
25	120000