In class this unit, we covered the
topic of accuracy vs. precision. Accuracy is defined as the closeness of a
value to the actual, accepted value. Precision is defined as how repeatable the
value of a certain result is. The picture below depicts a scale, which to serve
its function has to be both accurate and precise. A scale is accurate because
it tells you your exact weight. A scale is also precise, because if you were to
weigh yourself multiple times in a row, each measurement should be the same.
This certain scale is both accurate and precise. I know this because I know
that it is showing my exact weight, and after weighing myself three times, the
value stayed the same.
