Which type of chart is best for comparing two different datasets?

The bar chart is best for comparing two different datasets because it visually represents quantities for distinct categories, allowing for easy comparison across those categories. Each dataset can be represented by separate bars, enabling viewers to quickly assess differences in values. This format is effective in conveying how one dataset stands relative to the other, highlighting comparisons in a straightforward manner.

In contrast, while line charts are useful for displaying trends over time, they are less effective for comparing two distinct datasets unless those datasets are time-series data both plotted on the same time axis. Scatter plots are more suited for exploring relationships between two continuous variables rather than directly comparing datasets. Pie charts are designed to show parts of a whole rather than making direct comparisons, making them unsuitable for evaluating differences between two datasets.