34 



Tables for Statisticiam and Biometricians 



XXII. Abac to determine r r 



& 



•95 . 

 k 



• 90 J 



•85 I 



■80 o 



•75 •£. 



"70 2 



-65-= 



•60 



■55 



•50 



■45 



•40 



■35 

 •30 

 -25 

 -20 



10 



05 



01 



02 



03 



•04 05 



Value of „<r r . 



■06 



•07 



08 



