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

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

Tags

NGSS.MS-PS3-1

?

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

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Describe the accuracy and precision of the image

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

A set of data are all close to each other, and they are close to the actual value.  This set of data can be described as...

• accurate
• precise
• both precise and accurate

Students worked in teams to measure the length of an object. The actual length of the object was 7.0 cm.. Select the best choice that represents their data in terms of accuracy and precision

GROUP RESULTS

5.00 cm

5.01 cm

5.02cm

4.99 cm

5.00 cm

4.99 cm

• both accurate and precise

• only accurate

• only precise

• not accurate and not precise

A company claims to sell 15 candy pieces in each bag. Judy counts her bag and finds 14, Josh finds 16, and Jill finds 15. The company is...

• accurate

• precise

• accurate and precise

• neither accurate nor precise

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

Which is the more precise measurement?

• 4 mL
• 4.3 mL