SAMPLING COLLECTION OF DATA 3 CLASSIFICATION AND TABULATION 2 GRAPHIC PRESENTATION 2 MEASURES OF CENTRAL VALUE 2 STATISTICAL SURVEY 2 ANALYSIS OF COVARIANCE 1 BASIC ARITHMETIC PROBLEMS 1 BIOMETRIC GENETICS 1 CENTRAL TENDENCY 1 CORRELATION AND REGRESSION 1 DATA ANALYSIS 1 DESIGHNING AND METHODOLOGY 1 DESIGN OF EXPERIMENTS 1 DISPERSION 1 FACTORIAL DESIGN 1 GENERAL PRINCIPLES 1 HISTORY OF SEED TESTING 1 MOISTURE TEST 1 NATURE AND SCOPE OF STATISTICS 1 NEED FOR STATISTICS 1 PRINCIPLES AND PROCEDURES OF SEED TESTING 1 PROBABILITY 1 PROPERTIES AND DISTRIBUTIONS 1 PURITY ANALYSIS 1 REDUCTION OF ERROR 1 RESPONSE CURVE 1 SEED WEIGHT DETERMINATION 1 SURVEY 1 TERMS AND SYMBOLS 1