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Percentage.
M -l/eilO-- 5 . Observed.
M 2 -l/Ou 2 + 2)e*10- 5 . Observed.
Mj = M-a(A^). Calculated.
Difference.
M = 19750,
a = -4-2
21-66
32166
19702
19680
+ 22
25-07
31956
]9550
19537
+ 13
29-40
31713
19362
19355
+ 7
32-50
31470
19185
19175
+ 10
a = -4-6
34-36
31328
19098
19100
- 2
36-68
31141
18982
18983
- 1
39-11
30985
18853
18871
-18
a = -4-8
41-45
30792
18722
18721
+ 1
44-69
30574
18571
18566
+ 5
46-90
30325
18450
18449
+ 1
49-12
30241
18351
18352
^
51-0
30096
18240
18262
-22
a = 4 -85
54-63
29778
18041
18071
-30
57-0
29650
17956
17956
Nil
60-33
29385
17785
17794
- 9
63-07
29168
17651
17660
Q
a = -5-0
66 -60
28809
17430
17420
+ 10
67-92
28738
17373
17369
+ 4
|
a = -4-95
70-04
28576
17287
17280
+ 7
71-37
28434
17207
17195
+ 12
74-63
28130
17021
17046
-25
75-33
28063
16980
17016
+ 26
78-07
27833
16852
16876
-24
81-12
27693
16761
16725
+ 36
84-11
27360
16565
16576
-15
85-80
27256
16505
16493
+ 12
87-20
27203
16369
16424
-55
89-88
26899
16296
16291
+ 5
91-29
26792
16232
16221
+ 11
92 -82
26680
16159
16146
+ 13
95-66
26481
16057
16005
+ 52
98-67
26182
15885
15877
o
99-87
26090
15824
15787
+ 37
It will be observed that the values for a vary at the following points : 20 per cent., previously noticed by Gladstone, 33 per cent., 41 per cent., between 51 and 54 per cent., between 63 and 66 per cent., and
