a$)$Which city is the least profitable $($in terms of average profit$)$ in the United States? For this analysis, discard the cities with less than $10$ Orders $($i$.$e$.,$ Orders$($Count$)).$ List the city name and the average profit$/$loss$.$Lancaster $(-157\mathrm{.}4)$b$)$Why is this citys average profit so low? Your answer should be based on your analysis of the data in the visualization.