THEORY OF STATISTICS. 
TABLE IXA. 
’ 2. 3. 5. 6. 
Frequencies. Products. 
>a, Total. = 
+ 
Quadrants. Quadrants. 
— 85 —85 85 
17 13'5 + 35 : i 
105 9 +18 45 = 
185 | 65 Soli 28 or 
2 05 +15 ss 
135 ' +85 51 
13 +12 96 
9 + 5 45 
65 + 55 55 
175 +175 210 : 
5 El 14 : 
Tr #00 90 -- 
£ +47 112 -- 
+12 36 ~ 
: i 160 2% 
: + 42 
: = 144 
Co i 25 
13 - » 28 
30 == La an = 
36 -— zo on . 
40 ; - + 1] 40 : 
42 = - 2 84 
60 sy ta] 60 
63 Lo 63 
Totals 1455 +1528 -"5 
49 == 85 
71:5 
wl 1 5 
in column 5 or 6 according to sign. The algebraic sum of the 
totals of these two columns gives 3(fy)= + 15195. Dividing 
by 266, p'=5'712. But f= +1058 x 0:203= +0215; there- 
fore p=5"712 — 0-215 = 5-497. 
5-497 
=4-—— —— = +063. 
T= SE 00L © 
186 
[4] 
49 -§ 
1519 
266