Accuracy/Precision, %Error

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 true 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

?

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

The students measured length during a science experiment, 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%

Describe the accuracy and precision of the image

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

This image is an example of...

• precision ONLY
• accuracy ONLY
• BOTH precision and accuracy
• NEITHER precision and accuracy 

Which Student is the most Precise?

• Alex

• Shandra

• Luis

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

• accurate
• precise
• both precise and accurate