Final answer:
A line graph is typically the best option for representing factory sales data for digital cameras, as it shows continuous data over time, revealing trends and fluctuations in sales.
Step-by-step explanation:
When interpreting factory sales data for digital cameras, it's essential to choose a graphical representation that best describes the nature of this data. Given that sales figures are typically continuous and can show trends over time, a line graph is often the most suitable choice. A line graph illustrates the relationship between two variables: for sales data, the time is usually on the horizontal axis and sales figures on the vertical axis, effectively showing how sales fluctuate over that period. This helps in identifying trends, peaks, and troughs in sales.
Alternatively, a bar graph could be used if the aim is to compare sales figures between different products or periods in a categorical manner. Each bar would represent the sales figures for a particular camera or time period, offering a clear comparison. However, for showing a distribution or a part-to-whole relationship, such as market share, a pie chart could be appropriate, where each 'slice' represents a segment of the total sales.
In contrast, a scatter plot is more commonly used to investigate the relationship between two quantitative variables, which might not be the case here. Considering this information, the best graphical representation of factory sales data for digital cameras would likely be a line graph.