March 2019
Beginner
504 pages
11h 17m
English
Content preview from Learning Tableau 2019 - Third Edition
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Box and whisker plots
Box and whisker plots (sometimes just called box plots) add additional statistical context to distributions. To understand a box and whisker plot, consider the following diagram:
Here, the box plot has been added to a circle graph. The box is divided by the median, meaning that half of the values are above and half are below. The box also indicates the lower and upper quartiles, which each contain a quarter of the values. The span of the box makes up what is known as the Interquartile Range (IQR). The whiskers extend to 1.5 times the IQR value (or the maximum extent of the data). Any marks beyond the whiskers are outliers ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.