oA THEORY OF STATISTICS.
indicate equally clearly the tendency to resemblance between
father and son.
Example viii. —Association between inoculation against cholera
and exemption from attack, five separate epidemics (cf. Example
v., data from Tables IX., X., XXVIII, XXIX,, XXXI. of
reference 6).
Not Attacked. Attacked. Total.
Inoculated 192 4 196
Not inoculated . 113 34 147
Total . 305 38 343
Not Attacked. Attacked. Total.
Inoculated 5,751 Cr 5,778
Not inoculated . 6,351 198 6,549
Total . 12,102 225 12,327
Not Attacked. Attacked. Total.
Inoculated 4,087 5 4,092
Not inoculated . 113,856 1,144 115,000
Total . . 117,943 1,149 119,092
Not Attacked, Attacked. Total.
Inoculated . 8,332 8 8.340
Not inoculated 84,444 556 85,000
Total . . 92,776 564 93,340
Not Attacked. Attacked. Total.
Inoculated 4.870 5 4,875
Not inoculated 153,096 904 154,000
Total . 157,966 909 158,875
With the table of Example v. the above give data for six
separate epidemics, in all of which the same method of inocula-Ra