Beals, Ralph E.
Statistics for economists : an introduction / Ralph E. Beals. - Chicago : Rand McNally, 1972. - xi, 420 p. : ill. - Rand McNally economic series .
Statistics.
Regression analysis.
Statistics for economists : an introduction / Ralph E. Beals. - Chicago : Rand McNally, 1972. - xi, 420 p. : ill. - Rand McNally economic series .
Statistics.
Regression analysis.