It consists of a sequence of rectangles, each of which has as its base one of the class intervals and is of a height taken so that the area is proportional to the frequency. “A diagram representing the frequency distribution of data grouped by means of class intervals. The “Concise Oxford Dictionary of Mathematics” defines Histogram as: In today’s tutorial, we will learn a little but of theory about histogram, how to read it, few statistical terms and finally, how to plot a histogram using MS Excel. The data such plotted produced graphs of various types – an Excel Histogram is just one of them. This is to see if there are any patterns present or if there is any (apparent) relationship between variables. The data analysts start their analysis by visual examination of the data.
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