Assuming the following table of the cost (X) and selling (Y) price of flight tickets in dollars (S): Cost Price (X) 200 230 500 540 670 320 190 280 625 Sell Price (V) 300 250 510 700 730 500 412 355 635 Compute the following: 1. Plot a scatter plot of the data (manual plot or use any software like excel). (2 marks) 2. Pearson correlation coefficient (r). (2 marks) 3. The relation type and strength. (Imark) 4. Linear regression formula ( = B + RX). (2 marks) 5. The estimated of the ticket selling price when the cost is $500. (1 mark) 6. The error of the ticket selling price estimate when the cost is $500. (1 mark) 7. What is the percent of cost price variable interpret the variation of sell price variable (How much the coefficient of determination)? (1 mark) 20 estine