. A laboratory instructor has given a sample of amino acid powder to four students, A, B, C and D. Each student is asked to weigh the sample and record his/her results. The true (accepted) value is 8.72 g. Their results for three trials are:
Trials Student A Student B Student C Student D
1
2
3 8.72 g
8.74 g
8.70 g 8.50 g
8.77 g
8.83 g 8.50 g
8.48 g
8.51 g 8.41 g
8.72 g
8.55 g
a. Calculate the average mass from each set of data, and determine which set is the most accurate.
b. Which set of data is the most precise? Is this set also the most accurate?
c. Which set of data is the least accurate? Is this set also the least precise?
I'm sorry but the way the data is arranged doesn't allow me to interpret it at all. HTML doesn't allow for spacing like you want. I suggest you use dots or dashes something like this.
A......... 8.72.........8.74........8.45
B..........8.79......
etc