Elements of Statistics with Applications to Economic Data

a₁ a₂ analysis applied approximately arithmetic average arithmetic mean Bernoulli binomial coefficients binomial series cent Chapter class interval class marks coins COMMISSION FOR RESEARCH computed convenient correlation coefficient COWLES COMMISSION curve fitting data of problem derived determined dollars equal example f₁ Figure following data following table gives formula freight car loadings frequency curve frequency distribution frequency table function given Graph heads Hence histogram index numbers Industrial integers large number Lexis Lexis ratio logarithms m₁ M₂ Mark Frequency mathematical median method monthly normal equations obtained ogive p₁ P₂ parabola percentage period periodogram Pig Iron population probable error production quadratic mean ratio regression relationship represented RESEARCH IN ECONOMICS sample seasonal variation set of class skew-normal standard deviation stock prices straight line theorem tion toss United variables white ball x-axis X₁ Y₁ Y₂ York