How To Create A QQ Plot In Excel

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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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Software (Microsoft Excel 365 ProPlus)

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Best tutorial on YouTube for this plot. Really helpful, thanks

magictrades
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Great tutorial, clear, correct, and using current version of excel. Great help!

samwade
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this was so easy to follow!! thank you so much you saved me

lydiamaree
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Thnx for sharing in such a beautiful way

PK-twbi
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I can now say I have understood not only how to display a QQ plot but the concept behind.

Thanks.

cococnk
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I am teaching Statistician and I am very much impressed by way you explain the topic making my understanding topic even better. How QQ plot differ from PP plot, please make a video of it. I have a slight confusion over it. Thanks

santoshchhatkuli
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Thank you very much for the video. Very lucidly explained. Do you have tutorials for how to read plots of "residuals versus fitted values" and "residuals versus regressors"? Thank you.

MusafirHoonYaro
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thank you so much I needed this to answer my gf's assignments.

dexmog
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nice video Top Tip Bio. I killed the thumbs up on your video. Maintain up the quality work.

KeyserTheRedBeard
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Great tut. Why did you minus 0.5 at the percentile?

uini
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Thank you so much, you really saved me for my assignment. I appreciate you so much

Saraljinx
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Hi Steven,

can you please make a tutorial on AUC and ROC curves ? thanks

PiduguVijay
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at the step 2, why you distract 0.5? where is it come from?

omidhemmati
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hi, for the percentile, why do you do -05? i used to do -1. thank you

jandoubinouha
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what if the data is gamma distributed? would it be the same way?

anandasatria
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The trendline is the wrong thing to use here as it is the OLS best fit line for the data. What you want instead is a line that represents y = x.

astrnox
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Does data have to be ranged growingly?

filiptatarczak
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What if i keep getting the #NUM error message for my z-score data?

callipeters
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don't read his intro slide on mushrooms

donuts_are_good