Question

Accuracy vs precision

Answer 1

Accuracy is how close a measured item is to the actual or true value and precision is how close the measured items are to being the same.  So you could weight 5 apples.  If each apple weights 2 lbs and you said that the 5 apples weight a total of 10lbs you are determining the precision.  Precision is independent of accuracy.  Accuracy would be if you put all 5 apples on the scale at one time and knew a exact amount.