Answer:
C) 7.5%
Explanation:
Accepted value of a substance can be said to be that number or "value" that is generally accepted by scientists worldwide.
Experimental value is that value is a substance that is gotten from experiments in the lab.
Experimental error then is the percentage difference between the accepted value and experimental value.
Percentage error = [(|experimental value - accepted value|) / (accepted value)] * 100%
Percentage error = [(|37 - 40|) / 40] * 100%
% error = 3/40 *100%
% error = 0.075 * 100
% error = 7.5%
