thanks for stopping by today we're going to talk about the difference between accuracy and precision accuracy and precision help inform our knowledge when taking measurements accuracy refers to how close something is to the target or actual using a target to illustrate consistently hitting near the center would be accurate using another example if we were to use a scale to weigh a 20 kilogram dumbbell three times and the scale read eighteen point nine five kilograms twenty-one point two two kilograms and nineteen point eight one kilograms for each respective wing we would say that scale is accurate now let's jump to precision and then we'll bring it back together so precision refers to how consistent our results are regardless of how close to the true value they are using our target example if we hit this area of the target on every shot then we are precise using the scale on a 20 kilogram dumbbell example getting measurements of twenty three point one one twenty three point O nine and twenty three point one two for the three trials would tell us our scale is precise just not accurate it's consistently inconsistent so let's do a quick review and comparison accuracy is measuring near the true value while precision is getting consistent measurements or results let's use the target for some more examples this would be accurate and precise all the points are close together and averaged around the true value this would be accurate but not precise the results are around the true value but not consistent with each other this would be precise but not accurate all the results are close together but not consistent with the true value and finally this is need a precise nor accurate this is pretty much how it looks when I'm shooting no consistency not equidistant from the center just random it's important that measuring devices are both accurate and precise whether it be in research construction engineering or even in your home if they're not then results from measurements will be misleading at best and fatal at worst I hope that helps you understand accuracy and precision a little more and your comment below if you have any questions and be sure to subscribe for more educational content I'll catch you next time