Final Answer:
Walter, the senior sales analyst at Polka People Apparel, wants to compare the sales volume of the company's Manhattan, Sacramento, and Las Vegas branches. This comparison will best be illustrated through a comparative bar chart.
Step-by-step explanation:
A comparative bar chart is a visual representation that allows for a clear comparison of data across different categories. In this case, Walter can use a bar chart to display the sales volumes of Polka People Apparel in its Manhattan, Sacramento, and Las Vegas branches side by side. Each branch would be represented by a separate bar, making it easy to visually compare the sales performance.
Bar charts are effective for comparing discrete categories of data, such as sales figures for different locations. They provide a quick and intuitive way to analyze and interpret the relative performance of each branch.
Walter can use this visual representation to identify trends, patterns, and variations in sales volume among the different branches, aiding in data-driven decision-making.