Tableau Desktop Certified Associate: Exam Guide

Box and whisker plots (box plots)

While circle charts are useful for detecting outliers for continuous measures, box and whisker plots (simply referred to as box plots) are useful for understanding the statistical distribution of a continuous measure in terms of the median and interquartile ranges. The box and whisker plots consist of five key components: the median, the upper hinge, the lower hinge, the upper whisker, and the lower whisker. The median is the midway point or the 50^th percentile of the data. The upper and lower hinges show the first and the third quartiles, respectively. The whiskers extend up to 1.5 times the Interquartile Range (IQR) from the hinges, where IQR is the difference between the upper and lower quartiles. We can ...