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Sales Comparisonmedium16.4% of exam

Three matched pairs isolate a swimming pool at $10,500, $11,000 and $18,000. How should the appraiser proceed?

Correct Answer

C) Investigate the outlier and lean on the clustered pair values

Why this is correct: In paired-data analysis, when one value is an outlier, the appraiser must investigate why (e.g., were the sales truly comparable?). The clustered values ($10,500-$11,000) are likely more reliable indicators. Why the other choices are wrong: Averaging the three gives undue weight to the outlier. Adopting the highest figure without justification is unsupported. Abandoning the adjustment is premature if two pairs provide reasonable support. Exam tip: Look for clusters in paired data, not just the arithmetic mean. Investigate outliers.

Answer Options
A
Average the three at $13,167
B
Adopt the $18,000 figure as the most current market indication
C
Investigate the outlier and lean on the clustered pair values
D
Abandon the adjustment as unsupported

Why This Is the Correct Answer

Why this is correct: In paired-data analysis, when one value is an outlier, the appraiser must investigate why (e.g., were the sales truly comparable?). The clustered values ($10,500-$11,000) are likely more reliable indicators. Why the other choices are wrong: Averaging the three gives undue weight to the outlier. Adopting the highest figure without justification is unsupported. Abandoning the adjustment is premature if two pairs provide reasonable support. Exam tip: Look for clusters in paired data, not just the arithmetic mean. Investigate outliers.

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