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Accuracy and Precision

  Рет қаралды 366,694

Tyler DeWitt

Tyler DeWitt

Күн бұрын

To see all my Chemistry videos, check out
socratic.org/ch...
This is an easy to understand introduction to accuracy and precision. We'll play "guess my age," and look at bulls eyes representation of accuracy and precision.

Пікірлер: 214
@tdewitt451
@tdewitt451 11 жыл бұрын
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
@tdewitt451
@tdewitt451 13 жыл бұрын
@t50n oh yeah, also watch my video "error and percent error," which also talks about what you'd do if you made a bunch of measurements that had different amounts of accuracy and precision. and thanks for your good question--it will help me make the videos better in the future.
@mistymochi1258
@mistymochi1258 3 жыл бұрын
Sir ur great 😊
@bluknight99
@bluknight99 9 жыл бұрын
Dude! I'm a 45 year old cop finishing my bachelor's degree (FINALLY) and I'm taking a science lab with this stuff (accuracy, precision, significant digits, etc...). I was feeling like a complete idiot until I found your videos! You, Sir, are a life saver!! THANKS!!
@ComandaKronikk
@ComandaKronikk 7 жыл бұрын
Good on you man, you must well and truly finished by now!
@FreeStateMarc
@FreeStateMarc 7 жыл бұрын
I hope you found something more honorable to do. #bluelivesmurder
@FreeStateMarc
@FreeStateMarc 7 жыл бұрын
Arrest me, boot licker. The police force was made as a monopolized investigative service and protection racket. It has taken generations for them to evolve into a militarized force that terrorizes the people who they're sworn to protect; those they see as enemy combatants. Bunch of brownshirt, evil statist fucks you are.
@expiredclan4473
@expiredclan4473 6 жыл бұрын
LOL somebody watches too much CNN XD @freestatemarc
@AidanChilds
@AidanChilds 3 жыл бұрын
@@FreeStateMarc dude was just trying to learn physics, relax
@tewtz
@tewtz 11 жыл бұрын
This shit makes so much sense to me now. Thank you, we NEED more teachers like this
@Ghost572
@Ghost572 10 жыл бұрын
I actually forgot about this channel for a while as I've been studying other things but as soon as I saw it I remembered how good of a teacher this guy is.
@krishnannarayanan8819
@krishnannarayanan8819 2 жыл бұрын
Same!
@tdewitt451
@tdewitt451 13 жыл бұрын
@t50n good question! you use accuracy and precision when you're doing measurements, like in the lab or something. like maybe you're measuring the amount of gas in a balloon or something, and each person gets a slightly different answers. you want to be able to find out how accurate and/or precise your answers all are. make sense? in the second video "Accuracy and Precision 2" i show more about how you'd actually use this in a real world lab setting.
@monukeys1105
@monukeys1105 3 жыл бұрын
Sir you are helping me alot !! I cant imagine my chemistry without you this year !! I love you so much ! You are a great teacher !!
@peterchish3600
@peterchish3600 3 жыл бұрын
Man u are the best 11 years later I can still learn for u I hope you are alive u the best
@chesshirecattto_o2895
@chesshirecattto_o2895 7 жыл бұрын
Thank you so much! I like your teaching style!
@Abominatrix650
@Abominatrix650 13 жыл бұрын
I wish my teachers were a bit more like you! You are a brilliant teacher - you explained it well and I paid attention which is uncommon for me! Thank you very much! I hope you live a fantastic life and (when you eventually do arrive there) have a brilliant afterlife!
@laamandamaria
@laamandamaria 11 жыл бұрын
THANKKK YOUU I have a chem test tomorrow and you just saved my life!! :)
@emmabell529
@emmabell529 4 жыл бұрын
Thank you so much! My teacher is so confusing but this made it simpler. Thank you!
@tdewitt451
@tdewitt451 11 жыл бұрын
To learn how to do this, you want to watch the video called "Error and Percent Error."
@iamahmednahian
@iamahmednahian 8 жыл бұрын
Mr. DeWitt, you aced the teaching part here. Your friendly way of explaining worked towards my understanding of the topic. Thanks a lot. Please, keep it up. :).
@ajitsingh-cm9il
@ajitsingh-cm9il 6 жыл бұрын
U r actually a GURU. u know how to explain things. nice explation. keep it up
@omi5137
@omi5137 5 жыл бұрын
I've watched various videos and read lots of texts to understand this concept, but only this video did it for me!
@nitindev1920
@nitindev1920 10 жыл бұрын
While calculating process capability of a machine, with your video i came to know that Cp is precision and Cpk is accuracy, Precision requires more investment than accuracy. As the precise process can be shifted to achieve results. Thanks
@lincybiju9969
@lincybiju9969 4 жыл бұрын
Wonderful.. after going through many videos .. this video really taught me what accuracy and precision is .. i luv it .. wonderful way of explaining .. keep it up
@chessmanscience8058
@chessmanscience8058 6 жыл бұрын
yo, who with me in chemistry honors squad?
@Ameliacandycanegirl
@Ameliacandycanegirl 6 жыл бұрын
Yup...
@elmerlopez4146
@elmerlopez4146 5 жыл бұрын
Chemistry is on level for me
@Freedom-denier
@Freedom-denier Жыл бұрын
Yeaaaaa...
@VictorBravocarsales
@VictorBravocarsales 10 жыл бұрын
Jesus Christ sitting on a park bench, this guy is amazing!! My chemistry is an accelerated course, so my professor doesn't have the time to teach us everything. I would be so lost without your channel. Thank you sir!
@l0vexaile
@l0vexaile 11 жыл бұрын
thank you so much! this helped out a lot! i was trying to learn this but i couldn't get anyone else's explaination but i get yours very well! really helped me in doing my prelab :D
@mohammadorabe8589
@mohammadorabe8589 4 жыл бұрын
Your explanation is amazing! Thanks.
@abdurrahmancetinkaya5480
@abdurrahmancetinkaya5480 11 жыл бұрын
you're better than my teacher and your explanation is perfect.Thanks alot
@jaynedavidson9911
@jaynedavidson9911 11 жыл бұрын
This explanation is pretty Good . Thanks alot . If it isnt asking too much . Could you explain how to measure the percentage accuracy when reading a scale . ?
@nhokcon245
@nhokcon245 11 жыл бұрын
thks alot for all the videos u upload on here. There are a lot of videos that helpful to us. Hope u will make more
@meyosheTUBERS1
@meyosheTUBERS1 8 жыл бұрын
BEST CHEMISTRY TEACHER EVER I WISH MY TEACHER TAUGHT LIKE YOU THANK YOU
@abrahamrivera7753
@abrahamrivera7753 6 жыл бұрын
good job! your videos are easy to understand
@josikarustagi1147
@josikarustagi1147 5 жыл бұрын
what is accuracy and precision of the numbers 750.5 and 0.00002932.
@natassiacorrea7249
@natassiacorrea7249 9 жыл бұрын
Thanks for the video Tyler, really good explanation!!!!!
@aeolismons4236
@aeolismons4236 6 жыл бұрын
amazing sir i have watched almost all of ur videos cause my class teachers are'nt teaching lessons as good as u.
@nawazkhokhar7726
@nawazkhokhar7726 4 жыл бұрын
Just perfect. Thank you so much.
@eemanhaider6686
@eemanhaider6686 6 жыл бұрын
Thankyou so much Sir, you are the best teacher ever.
@Kenzzmacon
@Kenzzmacon 5 жыл бұрын
Thank you! This really helped me understand
@sachinsharma-mu2uk
@sachinsharma-mu2uk 4 жыл бұрын
You are amazing and teach very beautifully
@KaylynMichelle04
@KaylynMichelle04 Жыл бұрын
He make it so simple ! It make so much sense ! Thank you 🥰🥰
@eyerusalem8089
@eyerusalem8089 3 жыл бұрын
you are the best man .i did not get any video near to this .thanks
@VannyVolavola_
@VannyVolavola_ 7 жыл бұрын
Thank u so much...this video(accuracy and precision) really helps me with my Lab....
@subhankarpramanik2108
@subhankarpramanik2108 4 жыл бұрын
Sir, If true value is suppose 1.5 and one set of trials are 1.3 and 1.9 and other sets are 1.6, 1.6, so which set is more accuracy ?
@fluid3319
@fluid3319 3 жыл бұрын
1.6
@rm8517
@rm8517 11 жыл бұрын
man u r good at making relevant examples,u rili helped me
@woojo7
@woojo7 14 жыл бұрын
very good explanation, it really helped me a lot. keep it up!
@kmburss
@kmburss 12 жыл бұрын
Am i correct in saying that it is not possible to be accurate without being precise? I'm pretty sure if your answers are close to the accepted value then for sure your answers will also be precise... I've never seen an example of something being accurate without being precise.
@jeromecolico1960
@jeromecolico1960 8 жыл бұрын
thank you for making this video it helps me a LOT
@strawberryrhubarbpie
@strawberryrhubarbpie 6 жыл бұрын
omg. I didn't understand the difference between accuracy and precision until I watched this. PLEASE TELL ME YOU TEACH FOR A LIVING! Because God has gifted you big time!! thank you!
@rishikeshpisal6625
@rishikeshpisal6625 6 жыл бұрын
That really helped me.....Thank you very much for giving such examples to explain Accuracy and Precision...😀😀😀
@saintisraelmedi7686
@saintisraelmedi7686 5 жыл бұрын
You back (biochem)👏🏽
@safeerkaniyankandi3180
@safeerkaniyankandi3180 10 жыл бұрын
Helo Mr.Tyler Dewitt,It is very helpful.Please mention the linearity also.
@mshehzad4019
@mshehzad4019 7 жыл бұрын
I think accuracy and precision are relative terms. You can definitely say that a guess of 55 for the age is more accurate than 65.
@elleaffectueux9264
@elleaffectueux9264 10 жыл бұрын
Wow, now it makes sense! Thank you!
@amahlediya2934
@amahlediya2934 2 жыл бұрын
I was preparing to write a test.but jhooo you did it for me 😍🤭I didn't even go back to my notes.thank you🙌🥰
@amahlediya2934
@amahlediya2934 2 жыл бұрын
Jhooo
@4fifty8
@4fifty8 12 жыл бұрын
I'm not sure if I have that curse you speak of or not. I'm a flight instructor and teach aerodynamics and such. I like to understand the material very well and I try to come up with ways of explaining things clearly. I know when I was a student it bugged me when I couldn't get an answer either because the instructor didn't know or because they couldn't explain it well. I think the problem I have is that the students aren't motivated to learn. Most pilots just want to know the bare minimum.
@themountaingirl5024
@themountaingirl5024 4 жыл бұрын
Nicely explained
@TheCritic609
@TheCritic609 14 жыл бұрын
dude please make more chem vids. thank you ur sig. fig videos helped me understand it fully
@Als1822
@Als1822 9 жыл бұрын
you are awesome. thank you smarty.
@A_Paterson
@A_Paterson 11 жыл бұрын
That tutorial is precise and accurate!! Tnx a lot :D
@kamyarphysicsschool5065
@kamyarphysicsschool5065 Жыл бұрын
Great! you can also see my lesson in topic. It may be a different approach. Update me about your opinions.
@Stephane1750
@Stephane1750 4 жыл бұрын
What about a 4th situation where measurements are not precise but accurate?
@wilaskondowe9549
@wilaskondowe9549 2 жыл бұрын
Thanks very much u have given me very good insight of these two..keep it up.
@bawalther2009
@bawalther2009 3 жыл бұрын
Must read: Walther, B.A., Moore, J.L., 2005. The definitions of bias, precision, and accuracy, and their use in testing the performance of species richness estimators, with a literature review of estimator performance. Ecography 28, 815-829.
@haashigames1292
@haashigames1292 4 жыл бұрын
Love ur teaching style.,
@mr.friendly857
@mr.friendly857 8 жыл бұрын
Thanks alot man,now i got the concept :)
@angelinamohan9268
@angelinamohan9268 7 жыл бұрын
Thank so much u just made me not loose marks on my phys test :)
@calpoop
@calpoop 3 жыл бұрын
what would it look like for a dataset to be imprecise yet accurate? is it something like a work of art in "negative space," where you give all kinds of crazy disjointed answers that somehow perfectly carve out the center?
@SergioRomero-ge9tx
@SergioRomero-ge9tx 4 жыл бұрын
Great video. Thanks man
@naseralhamwai7627
@naseralhamwai7627 3 жыл бұрын
We need you to do videos about uncertainties!! Please do so...
@Vector_Ze
@Vector_Ze 6 жыл бұрын
I believe I accurately counted 26 instances of "OK" or "Alright", for an average of once every 22 seconds. Or more precisely once every 21.85 seconds, on the average.
@gauravresearch8
@gauravresearch8 4 жыл бұрын
Amazing and beautiful. Thank you
@jovssecuando3370
@jovssecuando3370 11 жыл бұрын
I have an idea for my teacher's activity for tomorrow :)) thanks again.
@jovanrodriguez7796
@jovanrodriguez7796 9 жыл бұрын
Your channel photo is badass
@mimomimo6994
@mimomimo6994 Жыл бұрын
You are wonderful teacher from 🇪🇹 thanks
@monikbello4824
@monikbello4824 7 жыл бұрын
Thank you so much, you explained it better than my Chemistry teacher
@verysimplephysicsinthamil1436
@verysimplephysicsinthamil1436 3 жыл бұрын
Sir............... Great Explanation
@user-xl6tm5mx7g
@user-xl6tm5mx7g 11 ай бұрын
Hi Tyler, I wonder about the last example of not precise and not accurate. None of the individual measurements ae accurate but when you average the four very imprecise and inaccurate values they aren't too far from the true value. So is it entirely true that they are inaccurate?
@jakeriadison5257
@jakeriadison5257 8 жыл бұрын
so helpful , im a sophomore in highschool in my freshmen year of college
@laithazzam5322
@laithazzam5322 9 жыл бұрын
first of all.... thank you very much....I have a question.. what if one of the four people in 5:35 guessed that the age is 30... would it still be not accurate???
@Asad-wp5pc
@Asad-wp5pc 8 жыл бұрын
yo I have the same question to lol
@miguelalcantar935
@miguelalcantar935 3 жыл бұрын
It depends on the rest of the values but I would say no
@user-xw4ib7hw2i
@user-xw4ib7hw2i 6 жыл бұрын
Man my teacher doesn't explain to me like you. You should be my chem teacher
@mariavidal3038
@mariavidal3038 9 жыл бұрын
thanks so much! i did not understand this in my science class and now i do so thank you..
@jaylenburris1630
@jaylenburris1630 6 жыл бұрын
Your literally saving my life right now.
@kash946
@kash946 13 жыл бұрын
thanks 2 u buddy u have very gud method of teaching .......... just be happy
@ab0oo0oo0d
@ab0oo0oo0d 11 жыл бұрын
Thank you very very much that's really helpful
@bharathvyaas7027
@bharathvyaas7027 6 жыл бұрын
Wow I got it nice video bro helpful At 1 st I tought like you are a science teacher and you are going to take a class about this but I like the way you delivered
@iqbaldanish1887
@iqbaldanish1887 Жыл бұрын
Thank uuuu I like your teaching style 💫
@4fifty8
@4fifty8 12 жыл бұрын
As long as it will make them pass their test, they are happy and don't want to know anything else. It's a problem of rote learning - they don't care if they understand it or not. So it's tough teaching them. Some are great and love learning stuff but they are rare. I love teaching and I love being able to get a deep understanding of something but unfortunately not all people care about learning to understand something. As a pilot, that's not really a good thing in an emergency!
@dayni2839
@dayni2839 Жыл бұрын
Finally I understand this concept
@IIOurworldVidzII
@IIOurworldVidzII 9 жыл бұрын
All your videos make sense to me :) Thanks!
@comicalitySH
@comicalitySH 6 жыл бұрын
Yo you should post more videos like these Thank you This video helped me allot...
@asimfaiz3039
@asimfaiz3039 7 жыл бұрын
so good very easy to understand
@HasibYouTube
@HasibYouTube 4 жыл бұрын
Really helped ty
@zahirullahwazir5853
@zahirullahwazir5853 8 жыл бұрын
Nice sir you are great your example mathod is so nice realy help
@mitsukislife
@mitsukislife 6 жыл бұрын
Concise and informative video, thank you~
@friedwankhede2902
@friedwankhede2902 8 жыл бұрын
simple and easy way to understand...........
@Zoepie4087
@Zoepie4087 12 жыл бұрын
Can the results be accurate without being precise?
@YahyaKhashaba
@YahyaKhashaba 8 жыл бұрын
Did anybody realise how he didn't include a Precise? No Accurate? Yes example because it is impossible to have measurements that are relatively far from each other but at the same time all are relatively close to a single point. It's like you are trying to make the information close AND far away from each other at the same time which is impossible
@liliacfury
@liliacfury 5 жыл бұрын
yep
@renzr1
@renzr1 4 жыл бұрын
On his part II video he included data (the target was 500.0 ft) which averaged to 500.0 ft exactly, but the three measurements were far away from each other. It can be done...
@gameon4540
@gameon4540 4 жыл бұрын
Hii sir till how many distance from actual value a no. Will be accurate .pls reply sir
@woojo7
@woojo7 14 жыл бұрын
dude.. u dont know i much i love you!!!! thank you so much!
@chittibabuadatravu5538
@chittibabuadatravu5538 3 жыл бұрын
Good explanation
@lilymcphalen5180
@lilymcphalen5180 12 жыл бұрын
the 2 dislikes are chemistry teachers who are jealous of the way you teach
@michellewitczak2410
@michellewitczak2410 6 жыл бұрын
Wow very good explanation thank you!!
@priscillalk5324
@priscillalk5324 2 жыл бұрын
Thank you so much Sir🙌 You make failing so impossible 🙏😊❤️
@zumarzumar9195
@zumarzumar9195 8 жыл бұрын
awsm....bht acha explain kia haii
@jennykhan7730
@jennykhan7730 8 жыл бұрын
gosh man !! u jus cleared my concepts God bless ❤❤
@KatiaGyetvai
@KatiaGyetvai 11 жыл бұрын
You are amazing! Thank you!
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