polynomial inequalitypolynomial regressionpolynomial ringpolynomial time polyhedralpolynomial trendpolysyllogismpolytopepolytope approachpons asinorumpontryagin duality theorempontryagin numberspoolpooledpooled error mean squarepooled estimatepooled estimate of variancepooled estimatorpooled sum of squarespooled variancepoolingpooling of errorpooling variancepoor decisionpop rivetpopulationpopulation correlation coefficientpopulation covariancepopulation critical sizepopulation distributionpopulation drainpopulation explosionpopulation growthpopulation limiting sizepopulation logistic growthpopulation meanpopulation of analysispopulation proportionpopulation sizepopulation standard deviationpopulation varianceporosityporousportable elevatorportfolioportionportraitpositpositionposition classificationposition description