Question

A refrigerator thermometer is read ten times and registers degrees Celsius as:

39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, and 39.1. However, the real
temperature inside the refrigerator is 37 degrees C. Is this an example of
precision, accurate, neither, both or neither, Make a selection and explain.

Answer 1

Precise, but not accurate

Step-by-step explanation:

First, let’s define accuracy and precision.

Accuracy: how close you are to the actual value

Precision: how close the measurements are to each other.

Let’s examine the data given:

39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, 39.1

Each number is very close to 39, within 0.1 to 0.4.

The actual temperature of the refrigerator is 37 degrees. Each measurement is about 2 away from 37.

Since the measurements are close to each other, but far from the true value, we can say this is precise but not accurate.

Answer 2

precise but not accurate,the real temperature inside the refrigerator is 37 degrees C. The thermometer isn’t accurate (it’s almost two degrees off the true value), but as the numbers are all close to 39.2, it is precise.