Question

accuracy & precision worksheet
name:
date:
directions: for each picture, decide if it shows accuracy, precision, both, or neither. explain your reasoning in the space provided.
1.
answer:
2
answer:
3.
answer:
4.
answer:

1. draw your own target example that is precise but not accurate.
2. challenge question: why is it important in science to know the difference between accuracy and precision?

Explanation:

1. The arrows are spread out and not close to the bull - eye or to each other, so it shows neither accuracy (not close to the true value, the bull - eye) nor precision (not close to each other).
2. The arrows are clustered together (precision) but far from the bull - eye (not accurate).
3. The arrows are close to the bull - eye (accuracy) and close to each other (precision), so it shows both.
4. The arrows are spread out and not close to the bull - eye, so it shows neither.
5. To draw a precise but not accurate target: Draw a group of arrows clustered together in a part of the target that is not the bull - eye.
6. In science, accuracy is important because it tells us how close our measurements or results are to the true or accepted value. Precision is important as it indicates the repeatability and consistency of our measurements. If we have high precision but low accuracy, our measurements are consistent but wrong. If we have high accuracy but low precision, our measurements may be correct on average but vary a lot. Knowing the difference helps in evaluating the quality of data and results, and in improving experimental methods.

Answer:

1. Neither
2. Precision
3. Both
4. Neither
5. Draw a cluster of arrows away from the bull - eye
6. Accuracy shows closeness to true value, precision shows consistency. Knowing the difference helps evaluate data and improve methods.