Bell Shaped Histogram Meaning. Here is the standard bell-shaped curve. Sep 18 2017 In this example the histogram is bell-shaped but the system is experiencing both special cause in this case systematic variation and common cause ie random variation.
File Histogram Showing Skewed Right Distribution 01 Jpg Linear Regression Histogram Normal Distribution from www.pinterest.com
The highest number of data points are located near the center of the graph with increasingly lower amounts of points at each end moving away from the center. Conversely the relationship between the mean and median can help you predict the shape of the histogram. When a line is drawn roughly using the tops of the bars as reference points it resembles the shape of a bell.
This is significant in that the data has less of a tendency to produce unusually extreme values called outliers as compared to other distributions.
There is no way to know for sure anything in statistics including from which distribution the data comes from. The clustering at a particular value is known as the central location or central tendency of a frequency distribution. If something looks bell-shaped it doesnt mean that it has to be normal. A bimodal shape shown below has two peaks.
