Accuracy and Precision

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PriscillaLi_3G
Posts: 63
Joined: Fri Sep 27, 2019 12:30 am

Accuracy and Precision

Postby PriscillaLi_3G » Fri Oct 11, 2019 11:29 am

Why is the accuracy vs. precision concept relevant to the chemistry we are learning right now?

Megan Cao 1I
Posts: 103
Joined: Sat Sep 07, 2019 12:18 am

Re: Accuracy and Precision

Postby Megan Cao 1I » Fri Oct 11, 2019 11:31 am

it'll probably apply more to labs and data. so you always want accurate data, but precise data will also help show some relationships even if you're not too accurate. as of quantum, I would just say you want accurate answers, just make sure your answers and work make sense

Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

Re: Accuracy and Precision

Postby Zoya Mulji 1K » Fri Oct 11, 2019 11:34 am

accuracy indicates how close measurements are to the "true" or real value and precision indicates how close measurements are to each other, but not necessarily to the "true" value.

Eunice Nguyen 4I
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: Accuracy and Precision

Postby Eunice Nguyen 4I » Fri Oct 11, 2019 12:26 pm

It's just a fundamental topic to know for chemistry. We may not be focusing on it right now, but we'll need it when it comes to labs and such (similar to what the previous person wrote)

ThomasNguyen_Dis1H
Posts: 102
Joined: Fri Aug 30, 2019 12:17 am

Re: Accuracy and Precision

Postby ThomasNguyen_Dis1H » Fri Oct 11, 2019 12:34 pm

It will become more relevant in a lab setting. If multiple trials of an experiment doesn't produce precise values, it will let you know that there is a systematic error (errors that can be eliminated). If your data is not accurate it could be due to random error (error you cannot control).

RobertXu_2J
Posts: 104
Joined: Fri Aug 30, 2019 12:17 am

Re: Accuracy and Precision

Postby RobertXu_2J » Fri Oct 11, 2019 1:40 pm

This is just a fundamental topic that has more to do with labs. Precision does have a connection to significant figures though. Specifically, the more sig figs your data has, the more precise your answer.

Khushboo_3D
Posts: 60
Joined: Wed Sep 18, 2019 12:19 am

Re: Accuracy and Precision

Postby Khushboo_3D » Fri Oct 11, 2019 1:47 pm

Accuracy is its closeness of measurements to the true value. While, precision is the closeness of measurements to each other. The reason why it was mentioned is that, it is more important to be precise than be accurate with your measurements, especially in a lab.

jisulee1C
Posts: 149
Joined: Thu Jul 25, 2019 12:17 am

Re: Accuracy and Precision

Postby jisulee1C » Fri Oct 11, 2019 2:33 pm

Accuracy vs Precision is going to be more applicable when we start analyzing lab data and looking at the results. Also accuracy relates to the concept of percentage yield because an accurate result would yield 100% or close to.

Megan Ngai- 3B
Posts: 50
Joined: Fri Aug 09, 2019 12:17 am

Re: Accuracy and Precision

Postby Megan Ngai- 3B » Fri Oct 11, 2019 2:42 pm

It will usually apply to when you do labs or collect data.
Accuracy is how close your data is to the true value while precision is how close your data is to each other. Your data can be precise but not accurate.


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