In a champions' trophy of dart match, a player was given three chances to hit the centre target with darts. He managed to hit all the darts close to each other but away from the centre.The given case depicts that the player's shots were
Correct answer: A. Precise
- A. Precise
- B. Accurate
- C. Uncertain
- D. Unreliable
Explanation
The correct answer is precise. Precision in measurements or actions means the results are consistent or close to each other, regardless of whether they are close to the target. In this scenario, the player's shots were consistently grouped together, which demonstrates precision. Accuracy, on the other hand, is about how close those shots are to the intended target. Since the shots were away from the center, they were not accurate. The terms 'uncertain' and 'unreliable' do not apply here because the shots were consistent, indicating reliability and certainty in the result.
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About Errors and Significant Figures
Measurement errors include random and systematic effects, absolute, fractional and percentage uncertainty, and the precision shown by significant figures. Questions apply rounding rules and uncertainty propagation in addition, subtraction, multiplication and division, while distinguishing accuracy from precision and uncertainty from an actual mistake.
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