A histogram is a vertical bar chart displays the distribution of That a set of continuous data. It Can Be Used to indicate the location and dispersion of the data. Histograms are also often referred to as Frequency Distribution Chart, where the presence of the histogram graph, we can easily find out frequencies in the view bar on the histogram.

In a lot of manufacturing will produce variations in the data. These data should be grouped in certain frequency intervals. This grouping is shown in the graph if the histogram will be clear. The highest stem is the highest frequency of our data analysis. Next the left of kana is data with frequency with a value below it and so on. Distribution and frequency grouping would facilitate determining the decision limits the data that is used in accordance with the needs or variations in data that must be removed.

The histogram is very useful to see whether the data distribution has a particular shape. Form a normal distribution, normal distribution is skewed or not the form. And in six sigma quality projects are used to Examine the quality of a group and seeks to show the which will of specification values give what manner of dispersion.