Why we can't take the degree of accuracy of a observation greater than the rest of the observations?
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Explanation:
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Answer:
Accuracy is how close a measurement is to the correct value for that measurement. The precision of a measurement system is refers to how close the agreement is between repeated measurements (which are repeated under the same conditions). Measurements can be both accurate and precise, accurate but not precise, precise but not accurate, or neither.
High accuracy, low precisionOn this bullseye, the hits are all close to the center, but none are close to each other; this is an example of accuracy without precision.
Low accuracy, high precisionOn this bullseye, the hits are all close to each other, but not near the center of the bullseye; this is an example of precision without accuracy.
Precision is sometimes separated into:
Repeatability — The variation arising when all efforts are made to keep conditions constant by using the same instrument and operator, and repeating the measurements during a short time period.
Reproducibility — The variation arising using the same measurement process among different instruments and operators, and over longer time periods.
Accuracy and Precision – YouTubeThis is an easy to understand introduction to accuracy and precision.