Accuracy, Precision, Range, % error

It is a measure of how close measurements come to each other when they are made in the same way

• Accuracy
• Precision
• Error
• Extrapolation

• Student A
• Student B
• Student C
• Cannot be determined

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

?

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

volume?

• 48 mL
• 48.2 mL
• 48.25 mL
• 4 mL

Volume?

• 63.5 mL
• 63 mL
• 63.55 mL
• 6 mL

Which Student is the most Precise?

• Alex

• Shandra

• Luis

Measurements: 12.3, 14.5, 10.1, 16.9

True Value: 25.0

These measurements are…

• Accurate, but not precise

• Precise, but not accurate

• Both precise and accurate

• Neither precise nor accurate