LIII LIV] Introduction Ixxxi 



Hence logy mo = 2-371,6644 



+ 32-8023 (- -004,1038) 



+ 1-984,5521 x -138,4195 



2-511,7510. 

 Hence y mo = 324-901. 



TABLE LIV (pp. 126142) 



Tables of the (r, v) Integrals. (Calculated by Alice Lee, D.Sc. Transactions 

 British Association Report, Dover, 1899, pp. 65 120.) 



The purpose of this table is to obtain the value of the integral 







(r, v) = f sin r 0e'd6 . . . .(Ixxxiii). 



Jo 



In order to obtain small differences in tabulated values two additional 

 functions F (r, v) and H (r, v) are introduced. 



The relations between the three functions are then expressed by the following 

 series of equations : 



F(r, v ) = e~* n Q(r, v) .............................. (Ixxxiv), 



..................... 



vr 1 



G(r >v ) = e*"F(r, v ) ................................. (Ixxxvi), 



^^,.,) ............... (l-xvii), 



where tan tf> = v/r. 



Pearson's Type IV Skew Frequency Curve is of the form 



-Flan-'- 



Hence if N be its total area, i.e. the entire population under discussion, 



^ r f ' *i 

 Jo 



a 



o 

 N 1 



B. I 



