use the data set to answer the question. which best describes the data set? it is accurate but not precise…
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
Answer
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.