Histogram

Published by MBA Skool Team, Last Updated: January 22, 2018

What is Histogram?

Histogram is a pictorial representation method of grouped statistical data. ‘Grouped’ implies the clustering of data with similar attributes or values into ‘classes’. The advantage of such a representation is its pictorial appeal wherefrom one can assess the nature of behaviour of a variable and is hence useful in predicting the probabilistic distribution of this variable.

 

Example:

Say we consider a class of 20 students as our data set. We want to represent the distribution of marks obtained out of 100 by them in the last annual examination as given by a histogram.



We construct a grouped table as on the extreme left with, say, 5 classes or groups of marks, each of width 20 and count the number of students in each class. Then we plot a graph of the same as besides, called the histogram. Along the x-axis, marks are plotted while the number of students is along the y-axis. The width of each bar is the width of the class while the height represents the number of students in the class.

 

This article has been researched & authored by the Business Concepts Team. It has been reviewed & published by the MBA Skool Team. The content on MBA Skool has been created for educational & academic purpose only.

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