ISO INTERNATIONAL STANDARD 24153 First edition 2009-12-01 Random sampling and randomization procedures Modes opératoires d'échantillonnage et de repartition aleatoires Reference number ISO 24153:2009(E) @ ISO 2009 ISO24153:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT ? ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or Iso's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii @ Iso 2009 - All rights reserved ISO 24153:2009(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Terms, definitions, and symbols 4 General ....... 5 Random sampling Mechanical device methods.. 6 Pseudo-independent random sampling - Table method.. 7 Pseudo-independent random sampling - Computer method .... 8 Applications to common sampling situations Annex A (normative) Random number tables. Annex B (informative) Random number generation algorithm computer code Annex C (informative) Random sampling and randomization computer code . Bibliography..... @Iso 2009 -All rights reserved ii