Student A measures the volume of a box to be 254 mL. The actual volume is 250.0 mL. Student B was asked to measure out 5.00 grams of salt on a centigram balance. When the
amount was checked by the instructor, the actual mass of the salt was 4.962 g. Student C
measured the length of the boys cross country course with a measuring wheel. The
course is 5.00 km long, but the student determined that it was only 4.972 km long.
Which student has made the most accurate measurement? Hint: you can not compare
their EE values, but you may compare the PE values.