. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. THANSACTIONS OK SI^fTION' F. 807 f. Ofwliicli lii'cami'frtiltfiil | WUVi* niii' lit Nuiubtr of mnrrinjti'.H miirriiiKo Nmnlier Fcircntnjj;o 100 ir., ic. 6 (> 17-ll> 108 IM) «7 l'()-22 181 i:u M :':iiiiilii'' in tlic Iwo; so that, notwitlistaiidiiifr the ('ompanitivo sinallncss ol" ibo numbers involvcil, tho results appear entitled to frreat confidence. In o
. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. THANSACTIONS OK SI^fTION' F. 807 f. Ofwliicli lii'cami'frtiltfiil | WUVi* niii' lit Nuiubtr of mnrrinjti'.H miirriiiKo Nmnlier Fcircntnjj;o 100 ir., ic. 6 (> 17-ll> 108 IM) «7 l'()-22 181 i:u M :':iiiiilii'' in tlic Iwo; so that, notwitlistaiidiiifr the ('ompanitivo sinallncss ol" ibo numbers involvcil, tho results appear entitled to frreat confidence. In order t'l soivt! the second question proposed, and obtain tlio prohahility that (imarriajre which Inis heen (diildless for several years will subsequently become friiitl'ul, it is nci^i'ssary to tabulate the niarriajres according; to tlie year in -wliicb the lirst cliilil was born. This is done in the loUowinfr table, wliicli relates to the 8U(jniairiajres > men under tliirty. It shows that 2U2 of these became fruitful in the first year af'ier nnirriage, ili'A) in the second, 72 in the third, and so on, until we come to a siii;ifle niarriafjre which became fruitful in the seventeenth yi>ar, after whicli none Ijecani" Iruitful. l)eductin<,' from the total of 80(i the i'02 niarriafres which hecaiiic fruitful in the lirst year, and the 4 wliich were dissolved Ity tlie lieatli of eitli"" hu-liand or wife, we have 610 unfruitful niarriafres ;,' at ihe beiriiiiiinu- nf th(^ second year, of which 380 (or 70 per cent.) subse([uently became fViiitliil. The lif^ures in the last column are obtained by division from ihnse in ilie t-.\(i ])reviou8 ones, and fjive the probabi''ty required, which, we see, stiwlily iliiniuish.'s to '20 per cent, at tlie be .._ 1 .-_ 1 114 11 â¢10 12 1 1 2 â :i 108 « â¢0(5 1.^ â¢2 â â â⢠104 C â¢) 14 â 2 â 1 .1 102 3 â¢o:j 15 . -_ 1 1 .__ â¢> 9i) :{ â o:^ 16 '.> 2 4 â It 97 ;? â¢0:5
Size: 1303px × 1919px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1885
