Accuracy & Precision Math Practice

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the Absolute Error for Group A, Trial 1.

• 5.8 %

• 3.9 g

• 7.9 g

• 2.8 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate Relative Error for Group B, Trial 3.

• 5.5 %

• 3.9 g

• 7.9 g

• 2.8 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the accuracy for Group D.

• 85.7 %

• 14.3 g

• 52.5 g

• 25.8 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the Absolute Deviation for Group C, Trial 1.

• 8.9 %

• 4.3 g

• 1.2 g

• 5.8 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the precision of Group C, Trial 3.

• 2.6 %

• 4.3 g

• 2.6 g

• 97.4 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate Relative Deviation for Group A.

• 1.0 %

• 4.3 g

• 1.2 g

• 1.9 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate Absolute Error for Group C.

• 1.0 %

• 0.1 g

• 1.2 g

• 1.9 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate Relative Error for Group D, Trial 1.

• 88 %

• 6.3 g

• -12%

• 12 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the accuracy for Group A, Trial 2.

• 93.9 %

• 6.1 g

• • 4.2 g

• 93.9 %

Absolute Error = |accepted - measured|

Relative Error = (Absolute Error / accepted)*100

Absolute Deviation = |average- measured|

Relative Deviation = (Absolute Deviation/ average)*100

Calculate the Absolute Deviation for Group B, Trial 3.

• 93.9 %

• 6.1 g

• • 4.2 g

• 93.9 %