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Transcript

HISTOGRAM

By. John Robert ,Yvonne

Jefferson

Do you have any Questions ?

Thank You !

Bar Graph or Histogram

SAMPLES

What is histogram ?

GRAPHS ?

A Histogram is a graphic summary of variation in a set of data. It enables us to see patterns that are difficult to see in a simple table of numbers. Can be analyzed to draw conclusions about the data set.

A histogram is a graph in which the continuous variable is clustered into categories and the value of each cluster is plotted to give a series of bars as above. The above example reveals the skewed distribution of a set of product measurements that remain nevertheless within specified limits. Without using some form of graphic this kind of problem can be difficult to analyze, recognize or identify.

Many different types of graphs are available and useful to the improvement of process. Line graph, flow chart, pie chart and bar chart or histogram are one the examples we have. Graphs are useful for presenting data in simple pictorial, that is quickly and easily understood. Graphs serve as powerful communications tools and should be employed liberally in the workplace to describe performance, support analysis, and document the improvement process.

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