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Poli 311 mode mean median

# Poli 311 mode mean median - Poli 311 Empirical Methods...

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Poli 311 : Empirical Methods Topic 8 : Statistics Describing Variables Because using brackets it is ordinal . the question with the clicker Nominal level measurement enables us to : tally frequencies : we can count how many cases take each possible value Descriptive versus inferential statistics : Descriptive statistics : used to describe characteristics of a population or a sample. Example : based on sample of Canadians, in this sample 41% said they would vote conservative The median rating of Stephen Harper Inferential Statistics : used to generalize from a sample to the population from which the sample was drawn. They involve using a sample to make inferences about the population . Using a sample value making an inference about the population value Generalize from our sample to the population Statistics : Univariate : involve one single variable at the time. Used to describe or make inference about the values of a single variable ( descriptive or inferential)

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Poli 311 mode mean median - Poli 311 Empirical Methods...

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