Precision, Accuracy, Tolerance

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

• Tolerance

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

This bullseye demonstrates...

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & High Precision

• Low Accuracy & Low Precision

If something weighs 50 lbs with a possible ± 2% range or error, what is the range of acceptable weights

• 48-52 lbs
• 49-51 lbs
• 40-69 lbs

If an object is supposed to be 25 cm long with a possible ± 4 % range or error, what is the range of acceptable lengths?

• 24 cm-26 cm

• 21 cm-29 cm

• 15 cm-35 cm

A piece has a dimension of 8 5/16" ± 1/64".  What is the maximum acceptable length?

• 21/64"
• 8 21/64"
• 8 19/64"
• 8 6/64"

Tags

CCSS.7.EE.B.3

Which measurement is within the tolerance .080 ± .006?

• .1

• .082

• .061

• .087

Which measurement is not within the tolerance .175 ±.003?

• .175

• .18

• .172

• .177