What statements best define percent error? check all that apply. it is a mathematical

What statements best define percent error? check all that apply. it is a mathematical way of showing accuracy. the higher the percent error, the more accurate the data set. the higher the percent error, the less accurate the data set. only the experimental value is needed to calculate percent error. only the actual, or accepted, value is needed to calculate percent error. a percent error always has a positive value.