Page:Memory (1913).djvu/80

C

L	WL	Δ	Q
1246	889	357	31.6
1231	885	346	30.2
1273	1039	234	19.7
1319	925	394	31.9
1125	971	154	14.8
1275	891	384	32.3
1322	857	465	37.6
1170	880	290	26.7
m1245	917	328	28.1
			P.E.m=1.8

The combination of the three average values of Q, which are stated in per cents and lie close to each other, for the 26 tests gives Q=27.8 (P.E._m=1.4)

VI. Six days26 tests, 10 at the time A, 8 at B, 8 at C.

A
L	WL	Δ	Q
1076	868	208	21.0
992	710	282	31.1
1082	756	326	32.7
1260	973	287	24.4
1032	864	168	17.7
1010	955	55	5.9
1197	818	379	34.1
1199	828	371	33.3
943	697	246	28.7
1105	868	237	23.2
m1090	834	260	25.2
			P.E.m=1.9