C. how often would measurements have to be made to find an overestimate and an underestimate (for the quantity of pollutants that escaped) during the first six months which differ by exactly 1 ton from each other?

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answer; the president uses mass media to gain support for policies;

answer; not counted as an offense known to the police;

answer; the negotiator was not in full control of his or her actions and hence should not be held responsible;