Accuracy and Precision

This chemistry video tutorial explains the difference of accuracy and precision in measurement. This video gives an example of four students attempting to measure the density of aluminum and asks which data is accurate but not precise. Accuracy has to do with how close your data is to the accepted value and precision has to do with how close your data is with each other.

Chemistry - Basic Introduction:

Scientific Notation Review:

Significant Figures Review:

Unit Conversion Problems:

Accuracy and Precision:

Density Practice Problems:

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Pure Substances & Mixtures:

Homogeneous & Heterogeneous Mixtures:

Physical and Chemical Changes:

Solids, Liquids, Gases, & Plasma:

Physical Vs Chemical Properties:

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Law of Conservation of Mass:

Law of Definite Proportions:

Law of Multiple Proportions:

Rutherford's Gold Foil Experiment:

Cathode Ray Tube Experiment:

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Atoms - Basic Introduction:

Cations and Anions Explained:

Diatomic Elements & Molecules:

Elements, Atoms, & Molecules:

Protons, Neutrons, & Electrons:

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Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[daibangx]

Thank you, not just for this video but for all the others. I am not an english native. So I use these videos as a way of learning how to express and explain things in science like physics, math or chemistry. It really helps a lot.

[djjdjejewisisihehe]

WHERE DID YOU FIND YOUR DATA, SALLY?!??

[Moon-fghe]

I have got a quiz tomorrow and seriously it helped me, , thanks alot, , , , you deserve happiness 💜

[zergravti]

Honestly bro idk how to thank you you are literally a life saver ❤

[lynslvvr]

Accuracy: how close data is to the accepted value
Precision: how close the data is with each other. Got it!

[jimmymusonda]

precision and accuracy this part in chemistry was hard for me but thank God you paved the way

[janzogi]

Thanks, finally I know the difference between the accuracy and precision 👍

[irony]

Sounds like Sally's got to get her problems in order. She is sending in lackluster research.

[naharih]

You’re the only one who made me understand this

[justineracoma]

Tomorrow is my first Physics class, and this video from 4yrs ago help me to prepare for tomorrow.
Thank U ♡

[ree]

This man has single-handedly carried me through years of school

[jogenche]

Your explanations are the best! Thank you for de-mystifying so many concepts

[unknown-mnwo]

Tysm you helped me in alot of videos bc im not English but I study in English and you have helped me alot in physics and math!

[georgesadler]

Professor Organic Chemistry Tutor, thank you for explaining/analyzing the difference between Accuracy and Precision in General/AP Chemistry. This is an error free video/lecture on YouTube TV with the Organic Chemistry.

[Justme_Ru]

Thank you so much, man. I have got a final exam tommorow and ypu have helped me so much ❤❤❤

[itsme-pcui]

my test is 9 hours later and I was literally a saly in this, so thnx for making me mike 😎😎

[SFS_DELTA]

It really helped no cap, I have a test next week thanks!

[premchandrayadav_]

Thanks sir, know one teacher teach me precision at under 5 second, one line wow I think your, best teacher in the world.

[ulanjaherbert]

It took only few minutes to understand immediately I started watching your video. Thanks for such wonderful explaination

[lilia]

wah thanks, now im understand about A n P more than before