Transcription of Describing Distributions - With Graphs or Tables
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Describing DistributionsWith Graphs or TablesApril 16, 2012 distribution of a VariableScales of MeasurementDistribution of a Qualitative VariableHistogramsWhat to look for in a HistogramVariation on Frequency HistogramsStem and Leaf distribution of a VariableDefinitionThedistribution of a variabletells us what values ittakes and how often it takes these distribution of a VariableTable:On a scale of 1-10, how nervous are you about takingSTAT 220? (1=very nervous, 10=not nervous)Level ofNumber ofPercentNervousnessStudentsof Scales of MeasurementAcategoricalorqualitativevari able places anindividual into one of several groups or categories may have ordering in some cases.
3.3 Bar Graphs for Qualitative Data On a scale of 1-10, how nervous are you about taking STAT 220? (1=very nervous, 10=not nervous) Bar graphs represent each category as a bar. The bar heights show the category counts or percents. Bar graphs can compare quantities that are not part of a whole. A Pareto bar graph has the bars ordered from ...
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