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shirley.ha
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HBS108 (Descriptive Stats) Mind Map on Frequency distributions & data in tables and graphs, created by shirley.ha on 10/09/2013.

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shirley.ha
Created by shirley.ha almost 12 years ago
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Frequency distributions & datain tables and graphsmost basic descriptive statistic, and are a method of imposing somestructure on numerical data.systematic way of arranging numeric values from the lowest to thehighest,together with a count or percentage of the number of times each valueoccurred.reflects a simple count of how frequently each value of the variableoccurred.Symmetricshape indicates that if we were to fold thegraph in half, the two halves of the frequencypolygon would be superimposedpresented in the previous frequencyhistogrampolygon describes an approximately symmetric distribution (ie it isslightly skewed).Skewedpeak of the graph is off-centre, with one tail longer than theother+ve-velonger tail is pointed towardsthe rightlonger tail points towards theleftDouble click this nodeto edit the textClick and drag this buttonto create a new node