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Mean Numbers and Proportions (and Standard Deviations) of Old, New, and Ambiguous Propositions
| New | Old | Ambiguous | |
|---|---|---|---|
| Familiar | |||
| Mean number | 5.76 (4.55) | 2.08 (1.78) | 0.24 (0.52) |
| Mean proportion | .61 (.26) | .35 (.28) | .04 (.11) |
| Unfamiliar | |||
| Mean number | 2.82 (2.01) | 0.84 (0.39) | 0.23 (0.44) |
| Mean proportion | .76 (.24) | .19 (.19) | .06 (.12) |
