G7: Accuracy and Precision

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

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

Measurements: 24.9, 25.2, 25.1, 24.8

True Value: 25.0

These measurements are…

• Accurate, but not precise

• Precise, but not accurate

• Both precise and accurate

• Neither precise nor accurate

A company claims to sell 20 candy pieces in each bag. Judy counts her bag and finds 14, Josh finds 18, and Jill finds 29. The company is...

• accurate

• precise

• accurate and precise

• neither accurate nor precise