## Accuracy v Precision

thanh24mai
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

### Accuracy v Precision

Can someone please explain the difference between accuracy and precision? Thanks!

connie 2C
Posts: 106
Joined: Thu Jul 11, 2019 12:17 am

### Re: Accuracy v Precision

accuracy is how close the value is to the true value. precision is how close the measurements are to one another. when something is accurate, it is almost exact in its measurement. precision measures the closeness of each value is to each other. refer to the picture that shows the visual representation if that helps!

Kehlin Hayes 4C
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

### Re: Accuracy v Precision

Accuracy is defined as how close to the exact amount your measurement was, in other words, how close and correct you were. And Precision is defined as the consistency and closeness of your measurements. Its important to have both when conducting experiments.

Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

### Re: Accuracy v Precision

accuracy = how close you are
precision = how consistent you are with your technique

Natalie C 1K
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Joined: Wed Sep 18, 2019 12:16 am
Been upvoted: 1 time

### Re: Accuracy v Precision

a measurement's accuracy is how close it is to the true value. precision is how close measurements are to one another (aka consistency), whether or not it is close to the true value

Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

### Re: Accuracy v Precision

Accuracy measures the validity of your measurement, or how close you were to the actual values to be obtained. Precision on the other hand measures the replicability of your results, or how many times you got the same result. If your method of experimenting stays the same throughout multiple trials, you will likely achieve similar results with each experiment, meaning your precision is high.

Karina Kong 2H
Posts: 98
Joined: Thu Jul 25, 2019 12:16 am

### Re: Accuracy v Precision

Accuracy is how close the samples are to the correct value. Precision is how close the samples are to each other.

Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

### Re: Accuracy v Precision

Have we gone over any applications of accuracy and precision in problems, or are we only responsible for knowing the definitions of each for now?

Jacob Motawakel
Posts: 103
Joined: Wed Sep 18, 2019 12:20 am
Been upvoted: 1 time

### Re: Accuracy v Precision

Accuracy is how close the obtained value is to the correct value. Precision is how close the obtained values are to each other.

Rodrigo2J
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

### Re: Accuracy v Precision

Accuracy is how close your answer is to the "correct answer," and precision is how consistent two or more of your answers are.

Yailin Romo 4G
Posts: 109
Joined: Wed Feb 20, 2019 12:16 am

### Re: Accuracy v Precision

A good way to see the differences between accuracy and precision is to refer back to the picture of accuracy v precision that he had on his lecture slides, it really helps to distinguish between the two visually.

305092540
Posts: 2
Joined: Wed Sep 18, 2019 12:21 am

### Re: Accuracy v Precision

accuracy how close you are to the correct answer and precision is how consistent you are with your technique and the results of your tests.

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