A student measured the density of an unknown liquid four times and obtained the values:
1.3 g/mL, 1.2 g/mL, 1.9 g/mL, 1.4 g/mL.
The actual value of the density is 0.997 g/mL.
The percent difference of the experimental average and the actual value is
a. 50%, inaccurate
b. 50%, accurate
c. 31%, inaccurate
Od.31%, accurate
% and the experimental value may be considered