Table 4 Grey prediction accuracy test level criteria.
Accuracy level | small error probability \(P\) | Ratio of a posteriori differences \(C\) | Accuracy level | small error probability \(P\) | Ratio of a posteriori differences \(C\) |
|---|---|---|---|---|---|
(Of an unmarried couple) be close | \(> 0.95\) | \(< 0.35\) | barely pass | \(> 0.70\) | \(< 0.65\) |
Eligible (voter etc.) | \(> 0.80\) | \(< 0.50\) | substandard | \(\le 0.70\) | \(\ge 0.65\) |
