00429nam a2200157Ia 4500008004100000020001500041082001400056100001600070245005600086260004700142300000800189650002000197650001500217653001500232700002400247170901s1976    xx            000 0 und d  a0030884128  a311bA79I  aAry, Donald 0aIntroduction to StatisticsbPurposes and Procedures  aNew YorkbHolt, Rinehart and Winstonc1976  a461  aSocial sciences  aStatistics  aStatistics  aJacobs, Lucy Cheser