site selectionsituatesituationsituational theorysixsix 8 element subalgebrasix angledsix high millsix sidessixteensixthlysixtiethsizesize distributionsize of a blocksize of a populationsize of a testsize of critical regionsize of experimentsize of samplesizingsizing diesizing millsizing rollskeletonsketchsketching curveskewskew coefficientskew curveskew distributionskew fieldskew hermitian matrixskew linesskew matrixskew product of measure preserving transformationsskew quadrilateralskew surfaceskew symmetricskew symmetric bilinear formskew symmetric determinantskew symmetric matrixskew symmetric multilinear mappingskew symmetryskew to the rightskewedskewed to the leftskewed to the rightskewnessskewness negative