Chemistry 2-5 Accuracy, Precision, Percent Error

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

• Accuracy

• Precision

• Significant

• Estimate

When a measurement is repeatable and consistent it is said to have...

• High precision
• Low precision
• High accuracy
• Low accuracy

This bullseye demonstrates...

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

Tags

NGSS.HS-PS2-1

?

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

Tags

NGSS.HS-PS2-1

The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

• 15.79%
• 18.75%
• 2.25%
• 18%

The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?

• 21%
• 17.37%
• 17.4%
• 21.02%

Tags

NGSS.HS-LS2-2

NGSS.HS-LS3-3

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%
• 20%
• 25%
• 30%

Tags

CCSS.6.RP.A.3C

When a measurement is repeatable and consistent it is said to have...

• High precision
• Low precision
• High accuracy
• Low accuracy