Which type of chart displays data using bars of different heights, grouping data into ranges?

A histogram is specifically designed to display the distribution of numerical data by grouping values into ranges, known as bins. In a histogram, the heights of the bars represent the frequency or count of data points that fall within each bin. This visual representation allows observers to quickly understand how data is distributed over a continuous range; for example, it can show where most of the values lie, whether the data is skewed, and whether there are any gaps or outliers.

In contrast, a pie chart is used to show parts of a whole and does not display frequency distributions. A line graph illustrates changes over time by connecting data points with lines, which is not suitable for displaying grouped frequency data. A scatter plot visualizes the relationship between two continuous variables, showing individual data points rather than grouped frequencies. Therefore, the histogram is the appropriate choice for displaying data through bars of different heights grouped into ranges.