
In this tutorial, I'll show you how to create a QQ (quantile-quantile) plot by using Microsoft Excel. Creating a QQ plot is a great way to visually inspect the distribution of your data. It's particularly useful to see if your data has a normal (Gaussian) distribution.
VIDEO CHAPTERS
00:00 Intro
00:18 Example data
00:33 Step 1: Rank your data
02:23 Step 2: Calculate the percentiles
03:23 Step 3: Calculate the normal theoretical quantiles
04:05 Step 4: Calculate the data Z-scores
05:21 Step 5: Create the QQ plot
07:35 How to interpret a QQ plot
08:18 Wrapping up
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