Errors and aim.

Which best describes the target?

• Precise, but not accurate

• Accurate but not precise

• Precise and accurate

• Neither accurate nor precise

Which student is the most ACCURATE?

• A

• B

• C

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.

• Student A

• Student B

• Student C

• Cannot be determined

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

Which best describes the target?

• Precise, but not accurate

• Accurate but not precise

• Precise and accurate

• Neither accurate nor precise

Errors that remain constant or change in a regular manner with each measurement are known as:

• Random errors

• Systematic errors

• Parallax errors

• Zero errors

Answer explanation

Errors that remain constant or change in a regular manner, even with repeated measurements, are called systematic errors.

Parallax error occurs when:

• Instruments are not calibrated properly.

• Electrical noise affects measurements.

• Random variations are present in measurements.

• The user reads an instrument at a different angle or line of sight.

Answer explanation

Parallax error occurs when the user reads an instrument at a different angle or line of sight, leading to an incorrect measurement.