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The closeness of a measurement to its true value is a measure of its .?
Wiki User
∙ 7y ago
accuracy; reliability.
Wiki User
∙ 11y ago
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Closeness of a measurement to the true value?
I do not really know what you are trying to establish. Perhaps the answer is 'The degree of accuracy'. Hope that helps.
What is the difference between accuracy and precision in science?
accuracy refers to how close a measurement is to the true or actual value. precision is a measure of the exactness of a measurement. so if playing darts high precision is like reproduicibility. you can get them all in the same spot. high accuracy would be scattered around the bullseye. if both then it would be close together near the bullseye.
What is a background count rate?
A lot of the time when you're trying to measuring the value of something, there are things going on, independent of you and what you're concerned with, that can mask the true value that you're looking for. For instance, say you wanted to measure how loud your computer is, but a neighbor is blasting their music so loudly that you can't even hear your computer. So, what the experimentalist would do would be to first measure the music by itself, the background count, then measure the computer + background count, and then subtract the first measurement from the second leaving only the computer noise.In nuclear decay measurement, especially gamma radiation, there are a lot of things in the background that skew the gamma ray measurement you're trying to make, mostly caused from long-lived radioactive isotopes that naturally occur in everything (K40 comes to mind). So you just simply measure those background energies by themselves and then subtract them from your data.
No measurement can be more reliable or accurate than the instrument used to make the measurement?
True
What is the percent error formula?
Percent Error is the difference between the true value and the estimate divided by the true value and the result is multiplied by 100 to make it a percentage. The percent error obviously can be positive or negative; however, some prefer taking the absolute value of the difference. The formula is the absolute value of the experimental value (minus) the theoretical value divided by theoretical value times 100. % error = (|Your Result - Accepted Value| / Accepted Value) x 100
What is the closeness of a measurement to the true value of what is being measured?
Approximation
The closeness of a measurement to its actual value is a measurement is called?
It's signature figures
What does accuracy mean in science terms?
In a scientific measurement, accuracy refers to the closeness of your measurement to the 'true value'. The true value is the result to which a large number of independent experiments, carefully conducted, tends.
Closeness of a measurement to the true value?
I do not really know what you are trying to establish. Perhaps the answer is 'The degree of accuracy'. Hope that helps.
Is precision refers to how close a measurement is to the true or accepted value?
No. accuracy is a measure of how close the measurements are to the true value.
What are the concepts of true value?
If your question is in economics, try there. If your desired True Value is in measurements, then ASTM and similar folk have useful definitions. The True Value of a measurement is the value to which many individual measurements taken by different methods and different experimenters tend. They go on to define Repeatability as the closeness of repeated measurements using the same apparatus etc. And the Reproducibility is the closeness of results achieved by different measurements with different apparatus.
What is the difference between accuracy and sensitivity?
The answers to this question are not exact, but are real and proper.The True Value of a measurement is the value to which a large number of observations; by different observers and different methods; tend.Accuracy is the closeness to which this measurement comes to the true value.Sensitivity of measurement is the finest discrimination it can measure. But sensitive measurements are often 'noisy' = erratic.Resolution is the number of digits in the result. Often quite a spurious representation of the True Value, and often mistaken for accuracy.Consider for example the height of Mt Everest. Or your own weight.The ASTM (in USA) and the various Standards Organizations will have very similar definitions.
What is a percent error?
It is a measure measurement of the amount of error made in an experiment. It is obtained by comparing the actual result, with the result gotten from the experiment. % error = [(experimental value - true value) / true value] x 100
What are percent errors?
A percentage error for a measurement is 100*(True Value - Measured Value)/True Value.
How close a measurement is to the true value is?
Accuracy
How close a measurement is to the true or accepted value is called?
This is the accuracy of a value.
What is accuracy in measurement and instrumentation?
Accuracy in measurement and instrumentation refers to how close a measured value is to the true or known value. It is a measure of systematic error, which denotes how well the instrument or measurement device is calibrated and free from biases. The accuracy is usually expressed as a percentage of the measuring range or as a specified number of units.
