56 
On the Variations in Personal Eejuation 
it is due to these variations that the values of remain so large, and it is their 
absence tliat makes the correlation in IV so low. The last graph (Series XX) is 
that for which the and o-^ are least, and yet is quite high (+ -507). 
As a last instance of these points, we may compare the constants* for XV and 
XVIII: 
h p/ o-j o-j 
XV --005588 +-G810 +-8568 -10711 -0573 
XVIII --000580 +-2870 + -3144 -04644 -0544 
— 1 \ r 1 1 I 
The horizontal line intersecting each graph gives the mean of the first 50 observations in that series. 
Fig. 6. Trisection. Diagrams representing variations in judgment. 
* For definitions of these constants the table on page 35 may be referred to. 
