Question

use the data set to answer the question. which best describes the data set? it is accurate but not precise. it is precise but not accurate. it is both accurate and precise. it is neither accurate nor precise. trial 1: 58.7 trial 2: 59.3 trial 3: 60.0 trial 4: 58.9 trial 5: 59.2 correct value: 59.2

Explanation:

Step1: Define accuracy and precision

Accuracy is closeness to true - value. Precision is closeness of measurements to each other.

Step2: Check accuracy

The correct value is 59.2. The values are 58.7, 59.3, 60.0, 58.9, 59.2. The average is $\frac{58.7 + 59.3+60.0 + 58.9+59.2}{5}=\frac{296.1}{5}=59.22$. The values are close to 59.2, so it is accurate.

Step3: Check precision

The values 58.7, 59.3, 60.0, 58.9, 59.2 are not very close to each other. For example, the difference between 58.7 and 60.0 is 1.3. So it is not very precise.

Answer:

It is accurate but not precise.