5.1 Below is information on a basket of toiletries for year 2018 and 2021: Prices Quantities Product 2018 2021 2008 2021 Soap (125 g) 2,65 3,05 5 7 Deodorant (50 ml) 24,65 25,35 6 8 Toothpaste (100ml) 5.25 6,15 10 9 Find the Laspeyres Quantity Indices and interpret your answer. (10) 5.2 A clinical psychologist is investigating whether the number of mistakes made by an employee can be forecast by the number of tasks an employee was busy with. She randomly assigned a different number of tasks (of the same level of complexity) to each of eight participants. After a participant completed all assigned tasks, the psychologist calculated the number of errors made. The data for all eight participants have been listed in the table below: Numberoftasks performed simultaneously 2 4 7 6 2 5 1 3 Numberoferrorsmade 0 1 6 2 O 1 0 2 5.2.1 State which variable is the independent variable (x) and which is the dependent variable (y). (2) 5.2.2 Calculate Pearson's correlation coefficient and interpret it. (8)