eeberhardt statisticecological statisticseconometricseconomic index numberedf statisticsedgeworth expansionedgeworth marshall bowley indexediting statistical dataeducational statisticseffecteffect variableeffective degrees of freedomefficiencyefficient estimatorefficient scoreefron morris estimatoreigenvalueeigenvalue equationeigenvectorelasticityelectionelection forecasting transferable vote systemelection projectionelementelement of a determinantelement of a matrixelementary eventelements analysiselicitationelimination methodelimination of variablesellipseellipsoidellipsoid of concentrationellipsoidalellipticelliptic coordinateselliptic operatorelliptically contoured distributionem algorithmembedded processempirical bayes theoryempirical density functionempirical distribution functionempirical likelihoodempirical processemployment cost indexencodingengineering statistics