Precision and accuracy IED

____________ is a measure of how close measurements come to each other when they are made in the same way.

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

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

To ensure results are reliable the experiment should be

• Done once

• Repeated

• Done as exactly the same as the method outlines

• Repeated if necessary

Which best describes the target?

• Precise, but not accurate

• Accurate but not precise

• Precise and accurate

• Neither accurate nor precise

Why do engineers make a prototype?

• For fun because they like it

• To test and improve a design

• To teach about a topic

What's the first step of the engineering design process?

• Find a problem

• Redesign

• Communicate

• Test and improve