Continue with accuracy and precision of experimental results for density determination written on the board.
Use the average density from 2 trials, each with 3 results. One set of 3 from group A and one from B. Elicit the definition for accuracy of results by comparing experimental to accepted. Determine a formula for determining the error and discuss absolute value being used. Compare the error from both groups to each other. Note how to determine the percent error and discuss the differences seen when percent is use. Define and discuss precision in data. Note that precision and accuracy are not always equal. Work a problem as presented in the textbook