d star - THE CO-OPERATIVE UNIVERSITY COLLEGE OF KENYA A...

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THE CO-OPERATIVE UNIVERSITY COLLEGE OF KENYA ( A Constituent College of Jomo Kenyatta University of Agriculture & Technology) FACULTY OF CO-OPERATIVES AND COMMUNITY DEVELOPMENT NAME:THAMBAU D MUNENE REG NO:BCBC 01/6024/2015 UNIT: INTRODUCTION TO BUSINESS STATISTICS 1 UNIT CODE:HCOB 21 TASK: SAMPLING METHODS A term paper submitted in partial fulfilment of the requirement for Bachelor of Cooperative Business DATE OF SUBMISSION 7 TH APRIL 2016

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In statistics , quality assurance , and survey methodology , sampling is concerned with the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population. Each observation measures one or more properties (such as weight, location, color) of observable bodies distinguished as independent objects or individuals. In survey sampling , weights can be applied to the data to adjust for the sample design, particularly stratified sampling . Successful statistical practice is based on focused problem definition. In sampling, this includes defining the population from which our sample is drawn. A population can be defined as including all people or items with the characteristic one wishes to understand. Because there is very rarely enough time or money to gather information from everyone or everything in a population, the goal becomes finding a representative sample (or subset) of that population.
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