. On the Theory of Consistence of Logical Class-Frequencies, and Its Geometrical Representation. Girls. (AB) . .(AD) . (BD) . ABCABDACDABD 870630 643574634630 0-99960-9861 0-99720-99530-99910-9955 Thus our imaginary hasty arguer, if he attempted to infer from the given valuesof (BC) and (AC) that some As must be B or, worse Btill, that A and B must be VOL. CXCVIL—A. S 130 MR. G. UDNY YULE ON THE THEORY OF CONSISTENCE positively associated, would be inferring almost the direct contrary of the real inference is ^^some As are not B, or A and B are not completely asso-ciated. Similarly f
. On the Theory of Consistence of Logical Class-Frequencies, and Its Geometrical Representation. Girls. (AB) . .(AD) . (BD) . ABCABDACDABD 870630 643574634630 0-99960-9861 0-99720-99530-99910-9955 Thus our imaginary hasty arguer, if he attempted to infer from the given valuesof (BC) and (AC) that some As must be B or, worse Btill, that A and B must be VOL. CXCVIL—A. S 130 MR. G. UDNY YULE ON THE THEORY OF CONSISTENCE positively associated, would be inferring almost the direct contrary of the real inference is ^^some As are not B, or A and B are not completely asso-ciated. Similarly from the given values of (AB) and (BD), or of (AC) and (CD) inthe case of the girls, he could only infer some Ds are not A ; and from (AB) and(BD) in the case of the girls again, some Ds are not B. § 36. In order to illustrate the case completely I give sketches of the congruence-surfaces in figures 16—^19 for the boys and 20—23 for the girls,^^ and have maiked ineach figure the co-ordinates corresponding to the actual values of (AB)/(t/), &c. 005 (AC)/(u ) / A 005 (BC)/(u>. Fij^, 16. O/ (AB)/<7j cj + (BD)/(w
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