0 ▁per ▁cent ▁were ▁aged ▁ 2 5 ▁or ▁younger . ▁ ▁Pol ling ▁places ▁and ▁postal ▁voting ▁The ▁A EC ▁planned ▁ 4 5 ▁pol ling ▁places ▁for ▁the ▁by - e lection , ▁with ▁early ▁postal ▁voting ▁from ▁ 2 5 ▁August . ▁The ▁A EC ▁planned ▁three ▁mobile ▁voting ▁teams ▁on ▁the ▁day , ▁including ▁two ▁teams ▁to ▁visit ▁n urs ing ▁homes ▁and ▁hosp it als , ▁and ▁the ▁third ▁to ▁visit ▁Kar net ▁Pr ison ▁Farm ▁in ▁Ser pent ine . ▁ ▁Pol ling ▁ ▁On ▁ 1 4 ▁September , ▁four ▁days ▁before ▁the ▁election ▁and ▁amid ▁the ▁rolling ▁of ▁Tony ▁Abb ott ▁as ▁Prime ▁Minister ▁of ▁Australia , ▁the ▁Re ach T el ▁poll ▁showed ▁Liberal ▁at ▁a ▁by - e lection ▁campaign ▁high ▁of ▁ 5 7 % ▁compared ▁to ▁Labor ▁at ▁ 4 3 % ▁on ▁two ▁party ▁preferred ▁vote . ▁ ▁Pre viously , ▁the ▁Re ach TE L ▁poll ▁published ▁in ▁The ▁West ▁Australian ▁on ▁ 2 8 ▁August , ▁showed ▁Liberal ▁ahead ▁ 5 1 % ▁to ▁ 4 9 %. ▁The ▁poll ▁of ▁ 7 8 2 ▁vot ers ▁was ▁commission ed ▁by ▁Australian ▁Mar riage ▁Equ ality ▁and ▁W A ▁director ▁Brian ▁Gre ig ▁said ▁the ▁ 6 2 % ▁support ▁for ▁gay ▁marriage ▁among ▁und ec ided ▁vot ers ▁could ▁decide ▁the ▁by - e lection . ▁ ▁Days ▁earlier , ▁the ▁Re ach TE L ▁poll ▁published ▁in ▁The ▁West ▁Australian ▁on ▁ 2 6 ▁August ,