Transcription of STUDY MATERIAL FOR B.COM BUSINESS STATISTICS …
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STUDY MATERIAL FOR B.COM BUSINESS STATISTICS …
STUDY MATERIAL FOR BUSINESS STATISTICS SEMESTER -III, ACADEMIC YEAR 2020-21 Page 1 of 56 UNIT CONTENT PAGE Nr I INTRODUCTION 02 II MEASURES OF CENTRAL TENDENCY 13 III MEASURES OF DISPERSION 27 IV CORRELATION 42 V INDEX NUMBER 48 STUDY MATERIAL FOR BUSINESS STATISTICS SEMESTER -III, ACADEMIC YEAR 2020-21 Page 2 of 56 UNIT - I INTRODUCTION The word STATISTICS is derived from a Latin term Status or Italian term STATISTICS or the German term Statistick is the French term Statistique each of which means a political state. The term STATISTICS was applied to mean facts and figures and figures which were needed the state in respect of the division of the state, their respective population birth rate, income and the like. STATISTICS -Meaning: The term STATISTICS is conveyed to two different things, In the plural use, STATISTICS means some systematic collection of numerical data about some particular topic.
c. Cluster and Area Sampling d. Multi-stage Sampling e. Sequential Sampling a. Stratified random Sampling Under this method random sampling, the population is divided into some groups or classes based on their homogeneity. Samples are drawn from each stratum at random It is a method used for increasing the precisions of sampling.
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