An example of a positive statement from a recent news story could be: "The unemployment rate decreased by 0.5% in the last quarter. another example of a normative statement is As of 26 December, over 278 million cases and just under 5.4 million deaths have been reported globally due to covid 19. What would be a comparassion and contrast of these two statements? What makes these two examples different and how do these differences relate to the different roles that an economist plays as a scientist and policy advisor?