Statistics, Populations and Samples
Jan 07, 2016
PowerPoint Presentation
STATISTICS, POPULATIONS AND SAMPLESBy 3th groupWHAT IS DEFINITION OFSTATISTICSPOPULATIONSSAMPLESSTATISTICStaat (German) StateStatista (Italian) Stateman
In the period of roman, statistic is descriptions of quantitative which needed by state including taxation, mobilizations, etc.a numerical measure that characterizes some aspect of population or group of values known as random variables.they are random variables because the outcomes of any single measurement, trial, or experiment involving them cannot be known ahead of time.the science and art of development an application of the most effective methods of collecting, analyzing, and interpreting quantitative data in such a manner that the fallibility of conclusion and estimate may be by means of inductive reasoning based on the mathematics of probability.GENERAL DEFINITONACORDING TO ANDERSON4POPULATIONSSAMPLESgroup of all of elements or the unit of observation from problems which studied.While samples are group of part of populations which used for explain characteristic of populationsPOPULATIONSFINITEINFINITEFOR EXAMPLE
Population in classroom : 6 studentsSample : 2 studentsFINITETaken several of themINFINITEan oceanographer who wants to determine the salt content of sea water using an electronic probe is faced with in an infinite population because there are an infinite number of places where he or she could place the probe. TYPE OF DIAGRAMTALLY CHARTFREQUENCY TABLEName of CarTallySuzukiHondaToyotaPoint5055708090Frequency23151810Frequency TablePICTOGRAMMathematicsDepartmentPhysicDepartmentBiologyDepartmentChemistryDeparment
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