What does a histogram visually represent?

A histogram visually represents frequencies of a variable by illustrating how the data is distributed across various intervals or bins. Each bar in the histogram corresponds to a specific range of values and its height indicates the number of observations or occurrences within that range. This visual representation makes it easy to see patterns, such as the shape of the distribution, central tendencies, and the spread of the data.

While qualitative data typically requires different representations like bar charts, histograms focus on quantitative data, showing how often different values occur rather than individual observations or summary statistics. As such, using a histogram enables educators and data analysts to quickly grasp the underlying trends and distributions within a dataset.