When it comes to measures, the words “accuracy” and “precision” are always used. Both “accuracy” and “precision” sound similar but mean different things. People often mix them up and use them in the wrong way. Here, we will learn the 5 differences Between accuracy and precision, what they mean, and how they differ.
What is Accuracy
Accuracy is the degree to which a measured value or a set of observed values is close to something’s real value. So, the closer a measurement is to the real measurement of a thing, the more accurate it is. In the same way, accuracy is linked to how close something is to a specific point of reference or target.
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How accurate something is depends on how well the measurement tools are set up. The less errors they have, and the more exact they are, the better they are calibrated.
What is Precision
In everyday life, the word “precision” is often used to mean “accurate.” But precision is how close the results of different measurements are to each other. Accuracy, on the other hand, is how close the value of a measurement is to the real value of what is being measured.
Repeatability is a very important part of being precise. That is, how often a set of measurements or actions are repeated, which means that the same thing is measured and done under the same conditions whenever the same tools are used.
Which is Important? Precision or Accuracy
When trying to hit a target, accuracy is more important. Either you hit the mark, or you don’t. It doesn’t help to be accurate if you never hit your target. Adding a correction factor to future measures can make them more accurate. If all your shots go to the left, try aiming to the right. You can make your measures more accurate in the future.
In math, accuracy is more important. When you use a measured value in a calculation, you can only be as exact as your least precise measurement. This is the main point of the topic of “significant numbers” in math. You can get more accurate by using a better measure tool or by getting better at using the one you have.
In science, good readings need to be both accurate and precise. In all your measures, try to make the best of both. But no matter how hard you try, measures will always be a little off from the correct amounts because of an error.
Accuracy VS Precision
In conclusion, accuracy and precision are two distinct concepts in measurement. Accuracy refers to how close a measured value is to the true value, while precision refers to the consistency or reproducibility of a set of measurements. Both are important in different contexts and can be affected by different factors. Understanding the differences between accuracy and precision is essential for making reliable and valid measurements.
