The following measurements of the mass of an aspirin tablet were made by different students in a lab. Each set gives the results of 3 measurements followed by the average. Which set produced the most accurate result? All values are in grams. The standard value reported by an analytical laboratory was 1.501 g.
A) 1.513, 1.503, 1.522 = 1.513
B) 1.513, 1.511, 1.450 = 1.491
C) 1.513, 1.459, 1.533 = 1.502
D) 1.513, 1.517, 1.512 = 1.514
E) 1.513, 1.510, 1.523 = 1.515

Question

Quizplus · Accepted Answer

The average of the three measurements in set C (1.513, 1.459, 1.533) is 1.502, which is closest to the standard value of 1.501 g.

The Following Measurements of the Mass of an Aspirin Tablet