How to calculate mean and standard deviation on a casio fx-83gt calculator 

Thank you so much Ginger man, you have done in 4:29 minutes what our university lecturer has failed to teach us in 4 months. Love you x

why cant teachers teach as well as you. It took me a few minutes to understand this, yet it took me 2 hours to understand what the teacher was saying in school and even then i still did not full understand it. good job

I had no idea my calculator was this POWERFUL thank you so much for this video now I won't suffer in my chem lab 🤗

My uni couldn’t teach me this, but a man on the internet has done it in 4 minutes. A 4 minute long 8 year old video, has just taught me more than my university did in a whole year.

my exams are gonna start next week (prepared by my college). and you my friend have explained the whole thing in less than 10 minutes. thank you very much!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! you are my saviour

I can not be more thankful for this. I was in a lecture and the teacher was going through this on her calculator and I was sitting there like a lost lamb until I came across your video and quickly watched it. Thank you so much!

You are my hero, I was stuck in my math class being the only one with a Casio and no one knew how to do standard deviation on it

You saved my life buddy. You pulled your hair trying to figure this out? I almost scalped mine. Well done for figuring it out and thanks for sharing this. You saved my life ( and my scalp).

you helped me 10 min before my exam on this and i got an A+ so thankyou

Thank you soooo much. I am a maths teacher and my 17 year olds all have this calculator. This was a very simple way to help them help themselves.

Dude, this video was exactly what I needed. You explained this in such a simple way. Was stressing about a stats quiz as I have been calculating all of this by hand, manually entering each equation and it takes ages! You're a lifesaver :-)

I have an analytical chem exam next week, this helped me so much. I was calculating manually which took soooo much time. Great vid!!

I was just like you crying an hour for my stats homework adding up all the squares of x on my calculator and without even knowing there was such a convenient method of using calculator since my school doesn't teach us this. Thanks bro u saved tons of my time.

omg thank you so much you just saved me from failing my up and coming maths exam this was so helpful and easier to understand than my maths teacher!!!!

you just saved my a level biology thankyou haha

This was/is a huge help Justin. Thank You. Saves a lot of time before an exam.

Well Done, thanks for the video. I was scratching my head trying to work this out. 4.5 minutes with you and I am done, Fair play to you

Thank you so much for this, I nee to take data skills for a Social Work degree and I really do struggle with numbers. This has been a bloody lifesaver!! Thank you again.

You helped me so much been up for ages on my birthday trying to do this finally you saved me.

Spent half hour inputting shed full of data and then cocked it up, knew there must be a way of doing it on these new calculators. Good one, well explained :)

still helping people today and its been 7 years

Thank you so much you saved my life with this video. You actually make sense when you explain it all.

mr justin you're such a life saver, you should be totes be names saint george

You probably just saved my Analytical Chem exam!! Thank you so much for this :D

man u are a lifesaver. I give u my salami

thanx man doing revision during holidays and u saved my life

thank you thank you thank you!!!!! Of course my teacher couldn't be arsed to teach us this. YOU ARE AMAZING!!!! YOU HELPED ME !!! :D

Cheers bro!! just what I needed for my exam tomorrow. You are a legend man! The fact I wrote it down few weeks ago but forgot 😂

Thanks for the video! :) I know this was uploaded 3 years ago but still wanted to say that it helped me a lot!

thanks mate, great tutorial. Saved me from getting a bad grade in my test

Thank you so much!!!!!!!!!!!!! You just totally saved me on my Final Exam. You are absolutely amazing at explaining this and so much better than my high school teacher. Thank you! Thank you! Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111

Very nice step-by-step instructions. One correction though, "VAR" on the calculator is an abbreviation for "variable", not "variance". If you want to calculate the variance, just square the standard deviation.

Thank you so much-this video has saved me hours trying to calculate sd through AS Statistics!!

you will save seconds of my exam. very clear, thanks

Thank you! Very good video, needed this for my exams net week and was very confused!

You are an absolute legend! This was so helpful :)

AC button had me stumped too. Thanks for the video👍

Thank you so much for taking the time to make this video!

Thanks man you helped me in my clinical chemistry class

Thank you sooo much for making this video!! Writing finals rn!

This is gonna sound weird but I really like your voice haha :)

This was driving me crazy how to do this. Thank you so much for stopping me getting any more grey hairs! :-)

Hey. Thank you very much for your help. It really helped me with my final exam. Thank you

dude, thanks so much for this tutorial as the google steps werent any help at all!! Thanks again!!

Omfg thank you 🤓! My teacher don't even know how to work a Casio and I don't want to ask her how to use it !!

Thank you soo much, I was soo peed off... This was so easy to understand as well thanks mate :)

Thanks a lot man, needed this for A2 Biology

MAAAAN THAT IS AWESOME,,, THANK YOU FOR SUCH DETAILED HELPFUL TUTORIAL

THANK YOU!!! i have S1 tomorrow and was pulling my hair out!

Great tutorial. More helpful than the Casio manual, and they made the thing :)

Thank you man :D I have exam tomorrow for stats and I am currently working out how to calculate things :D

Thank you, so much for taking the time and effort to work this out! This has been really helpful!

you've saved me for my stats exam!!!

Stomata Isa tomorrow! Thank you so much, you saved my bloody life. A grade here I come

Thank you so much for this video, it’s really clear and helping me so much with my statistics module.

helped so much for my stats tests in A2 bio !!! Thankyou

Thank you so much! Final exam tomorrow and I could not figure this out. x

Big help for my stats exam, cheers

Thanks man! save my life right before a maths exam!(hopefully)

Thank you so much! You have no idea how grateful I am. :)

Much better than the other tutorials

Thank you for the tutorial. Came in clutch

Thank you. This is a very well done demonstration.

Very useful tutorial. Thank you very much for posting. My results were slightly different if I did an exercise manually, but this could well be because the calculator uses all available decimal places...or something like that! Great post! Cheers,PM

Thank you so much man, I was really worried about these questions and now I'm not, thanks a lot :)

Thank you so much, this saved my skin on a question about standard deviation, I hate it with a passion!

Finals tomorrow morning. this saved my arse thanks man

THANK YOU SO SO MUCH. I have exam on Thusday and it all about st. deviation and mean. THANK YOU again

This helped me for A Level Biology, thank you!!!

Is that a University of Plymouth sticker at all on your calculator. Following this on mine atm and the stickers look identical haha, thanks for the help! Life saver!

Wish I could give two likes,well done ST George the brilliant

Awesome for my statistics GCSE. Thank you!

Thanks. I was confused by exactly the same thing!!

Really helped me out for chemistry lab!

Thank you Justin that helped me a lot , really appreciate it.

Note if you clear the calculator with "all" it will put it back into degrees mode (default) if you were in radians mode.

unbelievable Justin. Sorted me right out! Thanks a bunch x

You have just saved my life

Thanks, really helps got my final tomorrow and the formula of standard deviation is such a pain to learn

good job. saved me from a cardiac arrest

THANK YOU VERY MUCH FOR MAKING MY LIFE EASIER,GUD JOB.

Brilliant, thanks a lot, couldn't make head nor tail of the booklet with it!

Great vid. Clear helpful conscice. Good man.

This certainly has saved me, thank you

Thank you Justin that has helped me a great deal.

Thank you, I was definitely in need of help!

Come to learn, stay for the voice 😂. Helpful enough maybe zoom in next time just a little bit more, found it a little hard to see 😊

"I hope this helps one person in the world 😂" it helped me so thank you!!!!!

Thanks, finally video that explains this well:)

Thank you so much for this! You've just saved me from having to buy another calculator :p

awesome tutorial, really helped me out big time. thank you appreciate you sharing.

Mate you are a legend!

Thank you so much for this. Saved my life

You have just helped me pass stats tanx!!!!!!!!

thank you so much have bio exam tomorrow this helped alot

yes THANKYOU! last minute cramming, saved my life

Omggggg I fkn wrote 3, the population deviation instead of standard deviation in my fkn exam I just fkn gave yesterday. Why am I fkn watching this video now''!!!

In my 4th Year of Uni, I got a new calculator and I all of a sudden couldn't use it. Thankyou!! Pressing the AC button was my mistake!!!!!

Thank you! This is exactly what I needed :)

Really helpful dor chemistry stats! Thanks :)