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Lecture

GGR270H1 Lecture Notes - Estimation Theory, Social Statistics


Department
Geography
Course Code
GGR270H1
Professor
Damian Dupuy

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GGR270&Lecture&#1& & September&12,&2012&
&
Descriptive&Data&
Graphs&
Simple&measure&&&&&&&&&&&1&variable&
Simple&measures&&&&&&&&&2&variables&&
&
Probability&and&Distributions&
Simply&probability&
Sampling&distributions&
&
Statistical&estimation&
Process&
Techniques/test&
&
What&is/are&statistics?&
Any&collection&of&numerical&data&
o Vital&statistics&–&birth&rates,&death&rates.&
o Economic&indicatory&–&unemployment&rates,&income&levels&
o Social&statistics&–&power&rates,&crime&rates&
Methodology&for&collecting,&presenting&and&analyzing&data&
o Summarize&findings.&
o Theory&validation.&
o Forecast.&
o Evaluate.&
o Select&among&alternatives.&
&
Descriptive&and&Inferential&Statistics&
Descriptive&
o Organization&and&summary&of&data.&
o Replace&large&sets&of&numbers&with&small&summary&measures.&
o Goal&of&this&technique&is&to&minimize&information&loss&
Inferential&
o Links&descriptive&stats&to&probability&theory.&
o Generalize&results&of&smaller&class&to&larger.&
o Goal&of&this&technique&is&to&infer’&something&about&a&large&group&by&
looking&at&smaller&one.&&&
&
Population&and&Sample&
Population&
o Total&set&of&elements&(people,&objects,&regions)&under&examination.&
o Denoted&as&N’.&
Sample&
o Subset&of&elements&in&the&population&
o Used&to&make&inferences&about&certain&characteristics&of&the&
population.&
o Try&to&predict&behaviour&of&bigger&population&by&looking&at&sample.&
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