392 Prohahle, Errors of Frequency Types 
TABLE VIII. 
Values of for values of /3i, /Sg (Semi-Major Axis 
of Probability Ellipse). 
/8i 
0 -05 I -1 -15 -'Z -25 -3 -35 '4 -J^ S -65 -6 -65 -7 -75 
3-1 
3-2 
3-4 3-7 
