The Maximum value is in the largest international city of Tokyo, where 3.99% are foreigners. The difference between the Minimum and Maximum values is 3.55 points. The Third Quartile is 2.40%, meaning that in at least a quarter of the prefectures, more than one in 50 residents is a foreigner. The First Quartile is below 1%, and we can see that more than a quarter of the prefectures do not have a foreign population of 1%. We have created a chart using data from 2020 (*1). In order to create Box and Whisker charts for multiple years and compare trends for each year, a year axis is also required.Īnalyze using a Box and Whisker chart (for Single Year) For the purpose of analyzing a single year, you can create a Box and Whisker chart with only two columns, one for the prefecture axis and the other for the aggregated values. The table below shows the percentage of foreigners by prefecture. If you want to display multiple Box and Whisker charts side by side, you will need another axis. To create a Box and Whisker chart, you need at least one axis and one aggregated value. The value located exactly in the middle is the Median. The First Quartile indicates the value located in the bottom 1/4, and the Third Quartile indicates the value located in the bottom 3/4. collectively on a single chart and allows a lot of information to be viewed at a glance, so is used for various purposes. It can show Maximum/Minimum values, average, etc. In English, it is also called box plot or Box and Whisker plot and was developed in the U.S. Try Yellowfin Data Visualization Box and Whisker Chart Overview and Analysis Examples What is a Box and Whisker Chart?Ī Box and Whisker chart is shaped like a box with whiskers extending vertically or horizontally as shown in the image below.
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