THEORY OF STATISTICS. 
Table VII. gives two similar distributions from more recent 
investigations, relating respectively to sons over 18 years of 
age, with parents living, in Great Britain, and to students at 
Cambridge. The polygons are shown in figs. 7 and 8. Both these 
distributions are more irregular than that of fig. 6, but, roughly 
speaking, they may all be held to be approximately symmetrical. 
14. The moderately asymmetrical distribution, the class-fre- 
quencies decreasing with markedly greater rapidity on one side of 
the maximum than on the other, as in fig. 9 (a) or (6). This is 
the most common of all smooth forms of frequency-distribution, 
illustrations occurring in statistics from almost every source. The 
distribution of death-rates in the registration districts of England 
TABLE VIL. —Showing the Frequency-distribuiion of Statures for (1) 1078 
English Sons (Karl Pearson, Biometrika, ii., 1903, p. 415); (2) for 1000 
Male Students at Cambridge (W. R. Macdonell, Biometrika, i., 1902, 
p- 220). See Figs. 7 and 8. 
Number of Men within said 
Limits of Stature. 
Stature in ~~ - 
Inches. O ” @ 
; ambridge 
English Sons. Students, 
595-605 2:0 S 
605-615 15 —_ 
615-625 3:5 4-0 
625-635 20°5 190 
635-645 385 24°5 
645-655 615 40°5 
655-665 895 845 
665-675 148°0 1235 
675-685 1735 139°0 
685-695 149°5 179°0 
695-705 1280 1385 
70°5-715 1080 1080 
715-725 630 535 
725-735 42°0 47°5 
73:5-74' 29:0 210 
746-755 85 12:0 
755-765 4-0 50 
765-775 4:0 05 
77:5-785 3:0 = 
78:5-79°5 0°5 = 
Total 9 
90 
1078 100s