00280nam a2200097 a 450000500170000010000240001724500610004126000220010230000180012449000400014220251203090647.0  aSpiegel, Murrary R.  aTheory and Problems of Statistics, Murray R.Spiegel, eng  aMcGraw-Hillc1981  a359p.c22 cm.  aSchaum's Outline Mcgraw-Hill Series