How to Find Standard Deviation on a Casio FX-83GT PLUS

In this video I show you how to calculate the standard deviation on a Casio FX-83GT PLUS calculator.
Credits:
Kevin MacLeod: Carefree

[@SimpleScienceandMaths]

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[@emmy2518]

I hope both sides of your pillow are cold, you just saved me my maths exam!

[@SimpleScienceandMaths]

Happy to help!

[@thederpcrew]

Truly a high honour to bestow

[@gabrielchang3747]

It was crystal clear, you saved me and I'm gonna show it to all my friends in stats class!!!!!! Thank you, sir!!! You are saving lives!!!

[@nhan000]

Thank you so much!! I got a chemistry exam tomorrow and this sure helped me save a lot of time!!

[@SimpleScienceandMaths]

Glad it helped!

[@shadowblack1048]

Awesome and simple explanation, thanks a lot!

[@SimpleScienceandMaths]

Thanks for watching!

[@kulturekay5655]

I have a test tomorrow and I wasn’t understanding the directions from my math text book😭 Thank you so much super helpful!🙌🏽

[@leoegerton-warburton5061]

short simple to the point. Great stuff

[@SimpleScienceandMaths]

Thank you, glad it helped 👍

[@SimpleScienceandMaths]

Did you know you can now become a member of this Channel? Level one includes guaranteed replies to your questions in the comments section!

[@beastali7869]

Cheers bro this video really helped!

[@SimpleScienceandMaths]

Happy to help!

[@eugenelam5645]

Thank you so much! This video saved my life

[@83gt_plus57]

You absolute legend thank you 💯💯🙏

[@SimpleScienceandMaths]

No worries! Glad it helped 😎

[@bile4420]

thanks mate really helpful and easy to follow

[@SimpleScienceandMaths]

No problem 👍 glad it helped

[@RoninWeeb_187]

Thanks so much for the help my friend. 💪

[@angrywada8147]

you are a very good person you should feel proud of yourself thank you God bless

[@SimpleScienceandMaths]

Thank you

[@fairy_god_fabs7527]

Thank you kind sir, you just helped me pass😌

[@bigbymoon5707]

you're a life saver bro

[@lololol1917]

omg thank you so much for this!!! lifesaver

[@SimpleScienceandMaths]

You're welcome!

[@Aleena9219]

Thanks very much. Really helpful.😊

[@SimpleScienceandMaths]

You're welcome 😁

[@jim8261]

Simple Science Maths: Press tree. Me: *presses tree button and a plant grows out of my calculator at an exponential rate*

[@SimpleScienceandMaths]

🤣🤣🤣 when I was teaching in Australia the kids would always slag me over that! Now that I'm back in Ireland no body notices

[@jim8261]

@@SimpleScienceandMaths That is funny because I am from Australia. hahaha

[@-avalon-9440]

You helped me a lot in a test, also nice accent.

[@SimpleScienceandMaths]

Glad it helped! And thanks!

[@gerardtran84]

You are a legend mate!

[@SimpleScienceandMaths]

No worries!

[@dion_7155]

you're literally a god thank you king :]

[@andrewnguyen7428]

Actual life saver tysm!

[@SimpleScienceandMaths]

You're welcome!

[@ButterflySimmer]

I so wish i found this last year when I was doing SD in my exam. would have saved so much time XD

[@SimpleScienceandMaths]

Sorry you didn't find it last year!

[@ButterflySimmer]

@@SimpleScienceandMaths it fine. To be fair my lectuers recommend this video to show it. But at least I know now for university 😃.

[@pachong1933]

Thank you i was going crazy trying to find the frequency table

[@SimpleScienceandMaths]

Glad I could help!

[@ximen68.57]

Thanks ma dood u saved my life

[@74dorset]

Thank you so much!

[@SimpleScienceandMaths]

You're welcome!

[@ramshorn6216]

This was awsome!

[@SimpleScienceandMaths]

Thanks! Glad to help!

[@CodeBook12]

Thank you!

[@Coxinha310]

Thank you so much, I forgot my book at school and I have homework due tomorrow!

[@hamdanmohammed8591]

Thanks proo you are helpfull

[@gappysithole7414]

Thank you so much 🙉🙌🙌🙌🙌🌺

[@user-sk6nk5qd7q]

Thanks, keep it up

[@SimpleScienceandMaths]

Happy to help

[@lydiarhiannon624]

How would the calculation differ when trying to work out 1SD (68.2% of the sample/population), 2SD (95.4% of the sample/population) or 3SD (99.7% of the sample/population)?

[@choouuuo]

Thank you

[@adebimpeonikan9631]

THANKS!!

[@SimpleScienceandMaths]

You're welcome!

[@gelverjeffcantal2988]

nice bro

[@SimpleScienceandMaths]

www.simplescienceandmaths.com/calculator-skills

[@taditakawira890]

Life saver

[@pakuszka]

thank you ! whats the difference in calculations between population STD (what you chose - option 3) and standard deviation SX (option 4) ? o gosh ! - I just checked and the result is completely different - I assume people may not be aware of the difference and use both interchangeably

[@SimpleScienceandMaths]

You're welcome. I think you may be right about a lot of people being unaware that they are different and using them interchangeably. The difference is sample standard deviation is used when we have a sample of something from a large population. Normal standard deviation or population standard deviation is when we use all the data from the population. For most basic maths we use the population standard deviation. We only use sample standard deviation when we want to infer something about a population when given a sample of the population.

[@jarettlee8278]

i have to work out the problem with parentheses, what mode do i use for that?

[@SimpleScienceandMaths]

I'm not sure what you mean, can you explain further and I will try to help.

[@gilllparmeet4641]

This only goes up to 20 can you please tell me how I can do 26? Urgent!!!!

[@AadityaChawla-bc4ic]

When I press the mode, 2, then 1, I only get one column which says X, not the 2 columns like u do with X and Frequency. How do I get the frequency column. PLEASE HELP ME!!!

[@SimpleScienceandMaths]

Hi, I explain that at 0:39 in the video!

[@AadityaChawla-bc4ic]

I had an assignment due Monday which goes towards the HSC and this helped me for revision a lot! Thank u

[@crapydude1]

is the mean automatically rounded off to 2 decimal places?

[@SimpleScienceandMaths]

I don't think so!

[@wacky-physics7506]

¿So when I finish inputting this do I get infinite ammo in real life?

[@SimpleScienceandMaths]

Absolutely!!

[@Pikachu-nk9ck]

Savior

[@charlie5917]

licked and subbed

[@SimpleScienceandMaths]

Thanks 👍

[@owenwilson5083]

It's me WOW!!!!

[@troller-fp3xu]

Based gamer

[@ski8480]

I have a exam in 30 minutes lol

[@ciaranobrien9396]

Frequency is not coming up on my calculator it’s the exact same model? Have a test on Wednesday can anyone help out??

[@SimpleScienceandMaths]

Hi, I explain that at 0:39 in the video! Hope it helps!

[@turdburgler8634]

I did precisely everything and it didn't equals as yours. The result is 0x with the number zero in the bottom right corner... Any help anybody?

[@SimpleScienceandMaths]

Did you figure it out? perhaps reset your calculator and try again.

[@michaeledowling1039]

How do I reset the memory?

[@SimpleScienceandMaths]

Shift, clr, all

[@SimpleScienceandMaths]

to clarify further: shift, 9, 3, =, AC.

[@quranzoneTHEBOOKOFALLAH]

When i do AC then SHIFT then 1 then 4, my claculator only has option 1 and option 2. If you could help that would be very much approencieted.

[@SimpleScienceandMaths]

What model is your calculator?

[@quranzoneTHEBOOKOFALLAH]

@@SimpleScienceandMaths Fx-83ES.

[@SimpleScienceandMaths]

@I have no idea what to type I haven't used that one but what comes up on the screen when you press option 1 and 2?

[@quranzoneTHEBOOKOFALLAH]

@@SimpleScienceandMaths 1.Σ× ² 2.Σ× This isn't really a problem but I do appreciate your help, most people would just not reply

[@SimpleScienceandMaths]

@@quranzoneTHEBOOKOFALLAH 1 is the sum of your data squared, and 2 is the sum of your data.

[@alexanderbarry4100]

Thank you sm for this!!! Btw you Irish?

[@SimpleScienceandMaths]

You're welcome! Yep, I sure am!

[@alexanderbarry4100]

@@SimpleScienceandMaths Irish here too!

[@conpanda4765]

Clutcchchhh

[@JeremyChan04]

I’m sorry you got it wrong in the video, it is button 4 for standard deviation after you inserted the table and pressed shift 1, variable 4 then SX. You muppet

[@SimpleScienceandMaths]

Thank you for the feedback but I think you are incorrect. Both 3 and 4 are standard deviation but they are different types of standard deviation and it depends on the context of the question you are being asked. 3 is the population standard deviation and 4 is a sample standard deviation. Sample standard deviation is used when we have a sample of something from a large population. Population standard deviation is when we use all the data from the population. For most basic maths we use the population standard deviation. We only use sample standard deviation when we want to infer something about a population when given a sample of the population. I hope this helps!

[@hanuragreddy1569]

Get educated on things before calling names you muppet. Atleast correct your mistake. The man gave a nice explanation.

[@NellLiuNini]

Thank you!

[@SimpleScienceandMaths]

You're welcome!

[@marluroux8728]

Thank you