Distribution Of A Variable.docx
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Distribution of a variable *what values *How many cases
Visualizing a Distribution A) CATEGORICAL Bar graph (Proportion or count of cases by category) Pie chart (Proportion cases per category) – Use if 1) small # of pieces and 2) Not similar in size
B) QUANTITATIVE C) Histogram (Density Plot is a variant) *X axis limits indicate range of possible values of variable *Choose Number of bins n *Divide range into n (equal) intervals *Count # of obs. In each bin
Visualizing a Distribution A) CATEGORICAL Bar graph (Proportion or count of cases by category) Pie chart (Proportion cases per category) – Use if 1) small # of pieces and 2) Not similar in size
B) QUANTITATIVE C) Histogram (Density Plot is a variant) *X axis limits indicate range of possible values of variable *Choose Number of bins n *Divide range into n (equal) intervals *Count # of obs. In each bin
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