Statistics - Calculating standard deviation using a Casio fx-115ES Plus calculator

In this video I'll show you how to use a Casio fx-115ES Plus to find the standard deviation for a set of data. Remember that there are two values you could get for standard deviation. This depends if your data represents a sample or a population.
▬▬ Chapters ▬▬▬▬▬▬▬▬▬▬▬
0:00 Start
0:48 Entering the data into the calculator
2:08 Selecting the standard deviation option
3:43 Wrap up information and ending
▬▬ Related Videos ▬▬▬▬▬▬▬▬▬▬▬
This video is related to many other topics. Check them out:
Find the variance: • Statistics - Find the ...
Calculate by hand: • Statistics - How to ca...
Using the Ti83 or Ti84: • Statistics - Calculati...
Using the Casio fx-9750Gii: • Statistics - Calculati...
▬▬ Links ▬▬▬▬▬▬▬▬▬▬▬
Website: www.MySecretMathTutor.com
Contact: www.mysecretmathtutor.com/cont...
Facebook: / about
▬▬ Want to help? ▬▬▬▬▬▬▬▬▬▬▬
You can make MySecretMathTutor even better by contributing community subtitles.
Subtitles: kzbin.info_cs_p...

[@joelrodriguez1232]

Man, this is so great for the FE exam. Blessings!

[@tylertinkey3840]

i came here bc i'm researching calculators for the FE, looks like i'm in the right spot. thanks for commenting

[@AhmedHamed-iv6cz]

Thankk youuu my final exam is tomorrow, you helped me alotttt

[@Sunny-qe5el]

Never in my engineering studies did anybody teach me how to calculate std deviation using casio calculator. It's like 10-14 years ago. But, still this is worth the info.

[@JMSouchak]

You are freaking awesome! I keep stumbling on your videos and they're amazing!

[@MySecretMathTutor]

Glad I could help out. :^D

[@thobilemasoka6655]

Thank you so much sir, you just made things easier for me 🙏❤️❤️❤️

[@natashacalva7162]

Thanks!!!! excellent content, you helped me so much :D

[@ziadibrahim7328]

straight to the point a very informative video thanks a lot sir

[@ernestocamposjr.3057]

Very useful, thank you

[@yogeshkumar7389]

Brilliant, made my day!

[@_RoqueLM_]

Awesome, thank you.

[@jasonvan6742]

It's great!! Thank you so much!!

[@saltystorm8806]

Thank you so much!

[@sayedjehad1376]

Thanks its very useful made my day brother

[@SHREST_SAM]

Thank you so much 😁❤

[@QuarthDoesThings]

You are a savior

[@itsmeyousee4488]

ughhh thank youuuuuuuuuuu

[@PikaSaiyanZero]

Damn, I'm so glad I bought this calculator. Every day I'm surprised by the amount of stuff it does.

[@stephenokocha8364]

THANKS SO SO MUCH.

[@unrealxx925]

thank you kind sir !!!!!!!!!!!

[@hunny_dewww9834]

THANK U SO MUCH

[@heaven_sky783]

Thank u so much ❤❤❤❤❤

[@FitmeetsPhysicalEducation]

I like your class sir. please make a video on how to find "t" test for one sample nd paired sample How to test weather data is significant or not.

[@abeeraafzal6925]

Thankyouuu!

[@briannaoceguera517]

Thank you sir

[@MankeleZulu]

I just found this video and tomorrow I am writing found it very helpful ❤❤❤❤❤❤❤

[@TaeVyKim]

how to put absolute value in casio fx-9750gii

[@abdulkarim2455]

Thank you

[@ggongaga]

I’m currently stuck at the shift 1 part, my calculator is Canon F-789SGA, and it doesn’t return to the stat options once I click Shift 1 since there’s no function on the numbers on my calculator except 9 which is to clear memory. Do you have any tips on how to proceed to get the VAR:’)

[@_KBM]

thankyou alot

[@sohailjanjua123]

Hi I like your video

[@kburgess47]

how do i clear the numbers from the memory now????

[@msslxz]

I just had an exam 30 minutes ago. why don't I see this video earlier TT now

[@BucciThaJagaban]

How do you put two data list?

[@MySecretMathTutor]

This calculator is limited, but you can add a Frequency column..... 1. Press MODE, choose 3:STAT 2. Choose 1, 1-VAR 3. You should see the X list and the FREQ list. If the FREQ list is not ON, press shift setup, scroll down, choose 4:STAT, 1: ON. Now you have your FREQ (You don’t need to do this again unless you reset your calculator). 4. Enter your data in X list, frequencies in FREQ. If you just have a list, no frequencies, the calculator assumes FREQ 1 for each data item. 5. Once your list is updated, press AC. 6. Press shift and key #1 (behind it says STAT/DIS). 7. Choose 4: Var 8. For mean choose 2: X bar; for Standard deviation 4: sx. If you need both, choose one of them, press equal, see your result; press AC again, and again shift key #1 , again 4: Var, and choose the other variable. 9. For median (med) once you press shift #1, instead of 4: Var, choose 6: MinMax.

[@Dlktar]

Why this feels like cheating method haha. Man the traditional method is very time consuming

[@johgrant]

How can the population standard deviation be less than the sample standard deviation? This is surely incorrect: the population must, almost certainly, have greater variability than any sample taken from it. The sample standard deviation is therefore an underestimate of the population standard deviation. This underestimate is corrected for using Bessel’s correction. On older Casio calculators the notation was sigma_n for the sample standard deviation and sigma_(n-1) for the corrected estimate of the population standard deviation. The newer calculators seem to have the notation precisely the opposite way around.

[@Zakc1189]

I noticed the same thing for my calculator. The formulas seem to be switched.