A laboratory Instructor gives a sample of arnIno-acid powder to each of four students, I, II. III, and iv. and they weigh the samples. The true value IS 8.72 g. Their results for three trials are
1: 8.72 g. 674 lg. 8.70 g
II: 8.56 g, 6.77 g. 8.82 g
III: 8.50 g, 6.46 g, 6.51 g
IV: 8_41 g, 6.72 g, 8.55 g
(a) Calculate the average mass from each set of data, and teii which setFS the most acci.trate
PrecisiOn is a Measure of the average of the deviations of each piece of data from the average value. Which set of data Is the most precise? Is this set also the most accurate?
(c) Which set of data is both the most accurate arid most precise? {d) Which set of data is both the Least accurate and least pred se?