00270nam a2200097 a 450000500170000008200220001710000220003924500440006126000490010530000180015420251203091759.0  a370.1351,bD, gar  aGarrett, Henry E.  aStatistics: In Psychology and Education  aBombaybVakils, Feffer and Simons Ltd.c1981  a491p.c23 cm.