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L4 Descriptive statistics web version

# L4 Descriptive statistics web version - GVPT 100 Department...

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Click to edit Master subtitle style 2/13/11 GVPT 100 Department of Government and Politics Professor Birnir Variables: Why do we care what the distribution of any single variable looks like?

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2/13/11 Descriptive statistics Did you hear about the statistician who had his head in an oven and his feet in a bucket of ice? When asked how he felt, he replied, On the average I feel just fine.
2/13/11 Descriptive statistics Frequency distribution Raw frequency Percentage Cumulative percentage Measures of central tendency Mode Median Mean

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2/13/11 Frequency tables Frequency table   Raw Score Percentage Cumulative Percentage Unit measure 1 a a/Total*100=e e Unit measure 2 b b/Total*100=f e+f=i Unit measure 3 c c/Total*100=g i+g=j Unit measure 4 d d/Total*100=h j+h=100 Total a+b+c+d
2/13/11 Graphing variables Picture 3

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2/13/11 Nominal – descriptive statistics
2/13/11 Containers mode: Plastic Dispersion: Normal Frequency table for containers Raw Percentage Metal 7 14.58 Paper 10 20.83 Plastic 21 43.75 Glass 10 20.83 Total 48

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2/13/11 Ordinal- Descriptive statistics
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