SP 225 Lecture 6 Graphing. Pie Chart A graph depicting qualitative data as slices of a pie.

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Presentation transcript:

SP 225 Lecture 6 Graphing

Pie Chart A graph depicting qualitative data as slices of a pie

Example Climate of the World’s Countries FrequencyPercentage Desert76.9% Arid Desert54.9% Arid65.8% Tropical3231.4% Mediterranean109.8% Maritime43.9% Temperate3433.3% Arctic43.9% Total102100%

Bar Chart A bar graph for qualitative data, with the bars arranged in order according to frequencies or natural order

Histograms

Example FrequencyPercent

Frequency Polygon Uses line segments connected to points directly above class midpoint values or class label

Choosing a Graph Type  Choosing a graph type  Making graphs in SPSS

In Class  What type of chart best displays the data for the variable income and realrinc? Why?  Use SPSS create a graph of each income variable.  Does each graph suggest income inequality exists? Is either graph misleading? Why?  Write your responses on the SPSS graph output.