How To Calculate The Standard Deviation - Clearly Explained!

In this tutorial, I'll show you how to calculate the standard deviation by hand. Calculating the standard deviation may look difficult, but it is in face really easy to do. I'll break down the process step-by-step.
VIDEO CHAPTERS
00:00 Intro
00:49 Step 1: Calculate the average
01:20 Step 2: Calculate the difference with the average
01:54 Step 3: Square these values
02:18 Step 4: Sum up these values
02:30 Step 5: Divide by n-1
03:09 Step 6: Square root the variance
03:50 The standard deviation formula
04:14 Sample vs population formulae
05:00 Wrapping up
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[@StevenBradburn]

ONLINE GUIDE
toptipbio.com/calculate-standard-deviation/

[@user-ou7rm7ys8f]

In 2:30 why did you divide by n-1? what is the purpose of -1?

[@rm-ev7jw]

Best explanation so far! I’m a visual learner and I love that you referenced bulldogs ❤️

[@kangre63]

Your videos are most excellent! Thank you so much for the clear explanations. I have subscribed.

[@javkhlanbatsaikhan658]

Thank you very much for helping me to understand clearly how to calculate the standard deviation.

[@PNWNikki]

You made my homework tonight so easy to understand! Thank you so very much.

[@star5997]

Thanks! It did really help me.

[@SuperArmy2008]

Thanks. That’s a great explanation.

[@nomanalighazanfar6168]

Thanks for making it so easy even for a doctor 😃

[@dhritirajtalukdar8020]

Very well explained 👍

[@saroshamz5356]

Excellent work

[@ajaykumar-iq5nf]

Awesome..very nicely explained. Can you please make a video lecture for Principle component analysis and dimensionality reduction?

[@nazziwasarah106]

I have really learnt something, thanx

[@IanHunter-fb4qq]

thanks for the video, hrlped me finally understand!

[@accordingtome5468]

thanks that was so simple.

[@moagikgosi1026]

thank you very much you have made my life easy

[@user-xj7ud2cf1g]

BEST EXPLANATION YOU MADE ME HRNY

[@esthermendoza3083]

3.2 squared is 10.24 not 10.32, or did I calculate wrong?

[@user-yl6el5bi9b]

Thank you

[@konstantinosparaskevopoulo5335]

astounding

[@ADA98310]

Thanks

[@tllittle]

Nicely explained, thanks

[@nazziwasarah106]

I have problems with integration and differentiation, do you have any videos on those two??

[@mesiazul8435]

can you calculate the SD for a weighted mean difference as in metanalysis?

[@TheSpasmer]

great f-ing explanation

[@ilovemysoxandsex]

Is there a video explaining what SD is?

[@aishaaziz98]

Subscribed 🎉

[@StevenBradburn]

Welcome Aisha!

[@brandonbiz328]

ignore negative signs?

[@Canda-fh4xc]

So far, all youtube videos and written tutorials explain how to calculate Standard deviation. None of them really explained the benefit of using it.
1- All of them talked about the definition " A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out". Fine, I know how far the Standard deviation is from the mean. then what? All students know how to calculate it, but they don't know how to apply it in real life to fix a real problem.