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7. Determination of relative accuracy.pptx
Determination of relative accuracy at measuring of physical quantities. Alternative to Practical
• distinction between systematic errors (including zero errors) and random errors
• Show an understanding of the distinction between precision and accuracy;
• Comment on trends (validity, forecasts, methods of improvement) in results;
• Calculate uncertainties (including graphically);
• Analyze logarithmic relationships.
Accuracy vs. Precision
High Accuracy
High Precision
High Precision
Low Accuracy
Three targets with three arrows each to shoot.
Can you hit the bull's-eye?
Both accurate and precise
Precise but not accurate
Neither accurate nor precise
How do they compare?
Can you define accuracy vs. precision?
Exit Quiz: Evaluate whether the following are precise, accurate or both.
Low Accuracy
Low Precision
Low Accuracy
High Precision
High Accuracy
High Precision
Accuracy & Precision
Precision without Accuracy
No Precision & No Accuracy
Accuracy without Precision
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