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; therefore
 p=5"712 — 0-215 = 5-497.
5-497
=4-—— —— = +063.
T= SE 00L ©

186
[4]
49 -§
1519
266