How To Interpret A Boxplot. Finally look for outliers if there are any. Most of the wait times are relatively short and only a few wait times are long. The dot beside the line but still inside the yellow box represents the mean value of the data. Box plots show the five-number summary of a set of data.
The line in the middle of the shaded Tableau box or the dividing point between the two colors is the median or midpoint of all the data values in the range. Think of the type of data you might use a histogram with and the box-and-whisker or box plot for short could probably be useful. One way to help you interpret box plots is to imagine that the way a data set looks as a histogram is something like a mountain viewed from ground level and a box-and-whisker diagram is something like a contour map of that mountain as viewed from above. IF the box plot is relatively short then the data is more compact. Thats a quick and easy way to compare two box-and-whisker plots. The box-and-whisker plot is an exploratory graphic created by John W.
A boxplot is a chart showing quartiles outliers and the minimum and maximum scores for 1 variables.
In this case it is 70 inches. Minimum 1st quartile median 3rd quartile and maximum. If the box plot is relatively tall then the data is spread out. In a box plot we draw a box between the first and the third quartile. It is built based on the five-number summary. First look at the boxes and median lines to see if they overlap.