Accuracy vs Precision – Difference and Comparison

What is Accuracy?

The quality or state of being perfect and precise is called accuracy. The extent to which a measure, calculation, or specification’s result complies with the intended result or a standard.

The degree to which a collection of measures (observations or readings) corresponds to their actual value is known as accuracy. The degree to which something is accurate relates to how close it is to its genuine worth.

Accuracy is a type of observational error. High accuracy requires precision and high trueness. Commonly accuracy is a systematic error, a measurement of statistical bias, and a measure of central tendency.

Low accuracy leads to a difference between a result and the true value. In science and engineering, accuracy is a measurement of the degree of closeness and measurement of quantity; however, accuracy is a strategic goal you land directly on your target value.

Low accuracy means you are not achieving your target. Accuracy is determined after a single even though repeatability is critical in determining long-term success.

For example, you set a KPI to decrease the site bounce rate in the upcoming year by 12%. If you achieve the estimated value, your accuracy is 100%.

What is Precision?

It is the measurement of how close your results are. Precision is measured with time. It needs repeatability to determine the level of proximity among each set of measurements.

If your results are similar, it is high precision; on the other hand, low precision is when your results are not similar. Measurement of precision is done in two scenarios:

  • when you try to keep away from making the same mistake.
  • when you are achieving victorious results and need to establish reliability.

For example, all of your pages of websites have a high bounce rate, and the same percentage decreases these. So each site page has the same number of reduced bounce rates, 6% or 20%. It is precise but not accurate.

Let’s use a work estimation as just an explanation of project scoping. We can begin to gauge the reliability of our forecasts. If we calculate the size of several projects, each turns out to be roughly equal to or larger than we projected. But accuracy is the most important aspect of every job.

Difference Between Accuracy and Precision

Precision and accuracy both show an exact or close measurement to an original value, yet not the same. Accuracy shows how close a measurement seems to be to an accepted value. On the other hand, the precision shows how duplicable the measurements are even though they Are far from the accepted value. Both precise and accurate measurements are repeatable and are too close to the original values.

Let’s discuss precision and accuracy concerning basketball players. If the player does a goal, even though he will strike the different parts of the rim, he has a high degree of accuracy. While if he does not do a goal but strikes the same part of the rim, he has a high level of precision.

Comparison Between Accuracy and Precision

DefinitionThe quality and state of being correct, or level of correctness, is accuracy.The quality or measurement of exactness is called precision.
MeasurementIt is measured with one factor.It requires multiple factors for measurement.
RelationshipAccuracy must be precise in many cases.Precision may or may not be correct or exact, or accurate.