arma. (Type ihegers or decmase) The prepertion of human pregnancies that last less thas degsia The freportien of buman pregnancies that last more than ens in (Type intesgen er decimais.) The probabity tat a randonty ariected human pregrancy lasts mare fax deyt a inserpretasions of this ares. (Type irdegers or decimals. Uoe absensey order.) A. The propotion of haman pregareses hat last iens than ar move san dapt it B. The poporen of human prephancies that last tetween and daye.