2006-12-17 06:35:19 · 8 answers · asked by nameless 1 in Science & Mathematics ➔ Chemistry
they don't mean same thing in science
accuracy- how close the measurement is to the accepted
precision- closeness of set of measurements to one another in-other words it is called reproducibility of the measurement
2006-12-17 06:38:35 · answer #1 · answered by ibrar 4 · 3⤊ 0⤋
Accuracy is about being correct; precision is about the uncertainty of the measurement. For example, if you had a ruler that you could read to very small divisions, say 10^-6 cm, you could use this to make very PRECISE measurements, down to an uncertainty of less than 10^-6 cm. But if the ruler's calibration was off, and 1cm was really something different, the measurement would be wrong. You would have a very precise measurement that is inaccurate.
2006-12-17 06:51:40 · answer #2 · answered by gp4rts 7 · 0⤊ 0⤋
Accuracy is the ability to be precise and avoid errors.
Precision is the accuracy to which a calculation is performed.
2006-12-17 06:53:07 · answer #3 · answered by cheasy123 3 · 0⤊ 0⤋
accuracy is how close your measurement is to an exact or set measurement. precision is how close your measurements are to one another.
For example, if you were trying to calculate the acceleration due to gravity (9.8 m/s^2), and your calculations were 9.6, 9.7, 9.8, this means that you have good accuracy, since the calculations are close to the actual value and good precision because the calculations are close to one another.
If you had 7.7, 7.6, 7.4, you would have poor accuracy, since the numbers aren't close to the actual value, but good precision since the numbers are close to each other.
If you values were 5.6, 9.5, 7.4, you would have poor accuracy because the numbers aren't close to the actual value, and poor precision since the numbers aren't close to each other.
2006-12-17 07:00:48 · answer #4 · answered by nanabanana 2 · 0⤊ 0⤋
Accuracy is how close you are to the answer, and precision is how close your answers are to each other. It is confusing to explain, so if you think of it as a dartboard...
Precision: all of your darts in the 20 pt zone
Accuracy: one dart in the bullseye
Both: all the darts in the bullseye.
2006-12-17 06:39:23 · answer #5 · answered by classicrockrox 3 · 0⤊ 0⤋
Imagine a dart board. Being precise means you would hit close to the same place all the time, though it may not be in the center. Being accurate would mean you can hit the center. Being both accurate and precise means you can hit close to or at the center all the time.
2016-05-23 02:22:57 · answer #6 · answered by Jennifer 4 · 0⤊ 0⤋
Scientific acccuracy is zero percent, cause in reality, it is just folly, it needs God to make it complete.
2006-12-17 06:49:17 · answer #7 · answered by spir_i_tual 6 · 0⤊ 0⤋
science is all about trial and error, theres no guarantee
2006-12-17 06:38:43 · answer #8 · answered by sezzame 3 · 0⤊ 0⤋