What shows the number of ratios falling within specified intervals?

The correct answer is the frequency distribution, as it provides a clear representation of how many data points fall within specified intervals or categories. In this context, a frequency distribution organizes and summarizes data by showing the frequency of each category or interval, allowing one to see how values are distributed across different ranges.

In the case of property assessments, frequency distributions are particularly useful for analyzing the uniformity and consistency of ratios across different property types or neighborhoods. By grouping data into intervals, assessors can easily identify trends, anomalies, and areas needing attention in the assessment process.

Other options, while useful in different contexts, do not specifically address the question. A ratio study typically involves assessing the relationship between assessed values and market values but doesn't necessarily present data in the form of intervals. A bar chart visually represents data but does not inherently provide counts of data points within intervals in the same organized manner as a frequency distribution. A scatter plot illustrates the relationship between two quantitative variables but does not summarize data in intervals; it shows individual data points plotted on a grid.