Hi, please help me with this exam revision question, thank u!!

Agelic Piano Pte Lid wants to study the relationship between the age of a piano (X) and its selling price (Y). Listed below is a random sample of 5 used piano sold by the companies recently: Age in Selling Price in No Years (X) $000 (Y 1 9 8.1 2 7 6.0 3 11 3.6 4 12 4.0 5 8 5.0 a) Determine the linear regression equation. (10 marks) b) i. If a piano is TEN (10) years old, how much is the selling price? (3 marks) ii. If a piano is TWO (2) years old, how much is the selling price? (2 marks) c) i. Determine the correlation coefficient (3 marks) ii. Interpret the result. (2 marks)