Types of histograms, Project Management

Histograms are of five types. They are:

  • Bell shaped: It can be applied for concepts such as average and standard deviation.
  • Double peaked: It is used to compare two different processes with different centres.
  • Plateau distribution: It is used when the process is not well-defined.

Since the process is handled by different people in different ways, different measurements arise with none standing out. Plateau distribution is used to define an efficient process.

  • Comb type distribution: It is a result of the faulty construction of the histogram, with data combined together into a group called „greater than?.
  • Skewed distribution: The skewed distribution is asymmetrical since a natural limit prevents outcomes on one side. A distribution of analyses of a very pure product would be skewed, as any product cannot be more than 100 percent pure.

The figure shows the type of histogram.

1753_types of histogram.png

Figure: Types of Histograms

Posted Date: 9/28/2012 6:55:24 AM | Location : United States







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