Table 5

Aggregating Possibility Scores: An Example

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                        Class Labels    D₁                    D₂                           D₃                           D₄

X Variables

            A₁                                           50% (1)           10% (.2)          5% (.1)            15% (.3)

A₂                                25% (.71)        10% (.29)        5% (.14)          35% (1)

A₃                                           missing (1)     missing (1)         missing (1)        missing (1)

Overall likelihood

ratio (Frank Rule)                     0.71                 0.13                 0.04                 0.30

Overall possibility                     1                      0.18                 0.06                 0.42

Overall probability                    60%                 11%                 4%                   25%

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Note:  Probabilities are in the cells; possibility scores are in parentheses. D₁ is the most likely of the four class labels.