Statistics - How to calculate the standard deviation

This video covers how to find the standard deviation by hand using the formula. Remember there are actually two formulas depending if your data comes from a sample or a population. Even though all of these calculations can be done by hand, a calculator is recommended so that you don't make mistakes.

▬▬ Chapters ▬▬▬▬▬▬▬▬▬▬▬
0:00 Start
0:06 Formulas for calculating standard deviation
0:36 Example, calculating the standard deviation by hand
0:46 Find the value of n
1:05 Find the sum of squares
1:54 Find the sum and then square
2:52 Standard deviation of a sample
3:37 Standard deviation of a population
4:41 Wrap up information and ending

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[rego_m]

Taking Statistics this semester and i am glad to have found this channel. Clear and concise explanations. Thank you

[sociallyawkwardself]

I'm currently taking Statistics right now and on the topic about standard deviation. You explain things very well, thank you!

[conchitach]

Wow, your explanations are excellent, understandable, amazingly relieving. I'm taking Statistics this semester and happy that I found your channel. Looking forward to come back often to learn without the stress

[ryebread]

watching this almost 2 years after it came out and you have taught me more in 5 minutes than my college professor has in almost 2 semesters

[isabella_]

i cried a lot last night coz i wasnt able to understand the lesson even after watching videos from this platform (and i'll have my stats exam tomorrow) but im so glad i found ur channel, it's really easy to understand. thank you!!

[baebaevip]

Im going to be watching a lot of your videos this school year, you explain so well! Thank you so much.

[lelavelion]

My math class literally just said to use technology to figure out the answer so here I am.

[blakeririe]

And here I was stressing over my stats test tomorrow. Wish I'd found this channel sooner

[gwynethbalete]

Im so glad I saw your channel and now I can finally anwer my stats. Thank you!

[tannystakeaways]

Thank you very much. It's been decades since I've used this. Your video explains and illustrates it very effectively.

[KylobytePerSecond]

Nice. Thanks for this. Need it for Junior High School Research. Good job and I'm certain you're helping lots of people with your videos.

[marcomoose]

Thank you for this explanation, it was well made and easy to follow

[blackcelebritybirthdays]

Great video!! I wish you were around when I was in high school/college

[sondravanornam]

Your videos are such a great supplemental to my online college stat class. Thank you so very much. From learning more about the functionality of the Ti84 and Standard Deviation. I cannot say thank you enough.

[kw]

This was so helpful. Really clearly explained - thanks so

[rheccajunep.anudin]

Thankyou very much for this tutorial it helps me a lot for my statistical biology class

[EdgingGoattdd]

At 3:15 when he says 10x9, that doesnt work. You need to do 10(85511)-793881 divided by 10 then divided by 9 to get 680.32, then square it. I don't know why he said 10x9 but that was wrong unless I'm just stupid. I had to figure this out the hard way though.

[kaymyers]

How did you get the 10 multiply by 9 where did you get the 9 from I am totally loss

[andy_]

i have never seen either of those equations, i have only seen ones where the denomiator is dividing n-1 or n. where did you find those equations

[simpsons]

You’re explaination helps a lot thanks