© 2016. Grand Canyon University. All Rights Reserved.4.What should 1000 L of water weigh? Sample Data and Analysis of ResultsPart A -- Precision of P-100 or P-200 pipettes1.Record the weight you measured for the three trials of 100 L: Weight 1 (x1)_____ Weight 2 (x2)_____ Weight 3 (x3)_____ 2.Average the three weights.Average of three trials:______ 3.Calculate the % error between the average of the three trials and the true value.% error =│ Average weight – wt of 100 L of water│ x 100 =______ wt of 100 L of water4.Calculate the mean deviation for the three trials:mean deviation = │ xi - xavg │ = __________3Part B -- Precision of P-1000 pipettors1.Record the weight you measured for the three trials of 1000 L:Weight 1 (x1)_____ Weight 2 (x2)_____ Weight 3 (x3)_____
© 2016. Grand Canyon University. All Rights Reserved.4.What should 1000 L of water weigh? Sample Data and Analysis of ResultsPart A -- Precision of P-100 or P-200 pipettes1.Record the weight you measured for the three trials of 100 L: Weight 1 (x1)_____ Weight 2 (x2)_____ Weight 3 (x3)_____ 2.Average the three weights.Average of three trials:______ 3.Calculate the % error between the average of the three trials and the true value.% error =│ Average weight – wt of 100 L of water│ x 100 =______ wt of 100 L of water4.Calculate the mean deviation for the three trials:mean deviation = │ xi - xavg │ = __________3Part B -- Precision of P-1000 pipettors1.Record the weight you measured for the three trials of 1000 L:Weight 1 (x1)_____ Weight 2 (x2)_____ Weight 3 (x3)_____