The International Encyclopedia of Statistics includes articles on 
statistics and articles relevant to statistics that were first published in 
the International Encyclopedia of the Social Sciences (1968). These 
articles have been brought up to date by the addition of postscripts or by 
revision in whole or in part and have been supplemented by new articles 
and biographies listed in the Introduction. 
COPYRIGHT © 1968 BY CROWELL COLLIER AND MACMILLAN, INC. 
COPYRIGHT © 1978 BY THE FREE PRESS 
A Division of Macmillan Publishing Co., Inc. 
All rights reserved. No part of this book may be reproduced or 
transmitted in any form or by any means, electronic or mechanical, 
including photocopying, recording, or by any information storage 
and retrieval system, without permission in writing from Macmillan 
Publishing Co., Inc. 
THE FREE PRESS 
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Collier Macmillan Canada, Ltd. 
Library of Congress Catalog Card Number: 78-17324 
PRINTED IN THE UNITED STATES OF AMERICA 
printing number 
123456789 10 
Library of Congress Cataloging in Publication Data 
Main entry under title: 
International encyclopedia of statistics. 
Includes index. 
1. Statistics—Dictionaries. 2. Social sciences— 
Statistical methods—Dictionaries. I. Kruskal, 
William H. II. Tanur, Judith M. 
HA17.I63 001.42203 78-17324 
ISBN 0-02-917960-2 (set) 
ISBN 0-02-917970-X (Vol. I) 
ISBN 0-02-917980-7 (Vol. II)