Percent Error

This bullseye demonstrates...

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

This bullseye demonstrates...

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & High Precision

• Low Accuracy & Low Precision

Describe the accuracy and precision of the image

• Very accurate and somewhat precise

• Very accurate but not precise at all

• Not accurate at all but very precise

• not accurate and not very precise

A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.

• precise

• accurate

Which best describes the target?

• Precise, but not accurate

• Accurate but not precise

• Precise and accurate

• Neither accurate nor precise

A reliable experiment produces results which

• are consistent

• vary greatly

• are different from sample answers

• are not consistent

Accuracy means

• the measurements are close to each other

• the measurement is close to the true value

• the measurements are close to each other

• the measurements are close to each other and the true value.

Which student is the most ACCURATE?

• A

• B

• C

The attendance for the basketball game was estimated to be 12,500 people but 15,000 people attended. What was the percent error?

• 16.67%
• 20%
• 2500%
• 80%

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%
• 67%
• 85%
• 92%