Tuesday, May 25, 2010

Histograms

What is a Histogram?????

In simple language: A two dimensional frequency density diagram is called a histogram. A histogram is a diagram which represents the class interval and frequency in the form of a rectangle. There will be as many adjoining rectangles as there are class intervals.

Its self explanatory and also easy to understand the distribution of data since it does not involve calculations and solutions.

You will understand this better if we do some practical problems on Histogram.

Lets take some data and try to plot it in the form of a Histogram.

Example 1:












This data can be presented in the form of following Histogram.

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