What graphical representation is used to show the distribution of frequency and appraisal accuracy?

The histogram is the appropriate graphical representation for showing the distribution of frequency and appraisal accuracy. This type of chart displays data by organizing it into bins or intervals along the x-axis, with the height of each bar representing the frequency of data points within each interval. When it comes to appraisals, histograms can effectively illustrate how well appraisals align with actual market values by showing how many properties fall into specific ranges of value. This can highlight areas of overvaluation or undervaluation, providing insight into the accuracy of appraisals across various segments.

In contrast, pie charts are best for showing parts of a whole for categorical data, line graphs typically represent trends over time, and scatter plots illustrate relationships between two variables rather than frequency distributions. Thus, while each of these other options has its merits in data visualization, they do not specifically cater to the needs of representing frequency distribution and appraisal accuracy as effectively as histograms do.