When creating a histogram, what should be done with the total number of observations?

Including the total number of observations in the chart title when creating a histogram is an important practice. The title provides context and clarity about the data represented in the histogram. By including this detail, viewers can immediately understand the scale of the dataset and interpret the results more effectively. For instance, a histogram showing the distribution of ages with a title that states “Age Distribution (N=150)” gives the audience a quick reference for the total observations, enhancing their comprehension of the histogram's implications.

This practice aligns with the principles of effective data visualization, which emphasize clarity and context. By making the total number of observations visible in the title, it helps communicate the significance of the data distribution, especially when comparing it to other datasets or assessments. Having this detail readily available can also aid in understanding the reliability of the data representation.