Per-unit-value analysis requires the calculation of appropriate units of comparison based on?

Per-unit-value analysis is a crucial method used in appraisal to determine the value of properties based on their characteristics and the market. The correct choice revolves around the use of measures of central tendency and dispersion, which are essential for accurately interpreting and analyzing data.

Measures of central tendency, such as the mean, median, and mode, provide insight into the typical values of properties within a market segment. By calculating these measures, appraisers can identify what a 'typical' unit looks like, which is vital for establishing a benchmark against which other properties can be compared.

Dispersion measures, such as range, variance, and standard deviation, allow appraisers to understand the variability or spread of the data. This is important because it helps evaluate how consistent or varied property values are within a given area. Understanding this variability enables appraisers to make more informed decisions regarding the value of a property, as it takes into account not just the average, but also how values may differ significantly from that average.

In conclusion, using measures of central tendency and dispersion equips appraisers with a comprehensive understanding of the market, allowing for a more nuanced and accurate per-unit-value analysis. This reflects the interplay of diverse property characteristics and market conditions, leading to more reliable valuation outcomes.