1. The problem statement, all variables and given/known data A student performs a series of measurements, the obtained values are : 90, 110 and 180. The method that is used has a theoretical error of 5%. What is the real value of the measurement and empirical error ? What are the conclusions ? 2. Relevant equations We have no equations given 3. The attempt at a solution No idea. We haven't done any similar exercises. We only did experiments, where we measured different values and we got errors and we know that an error bigger than 5% means that something in the experiment went wrong, but that's it, honestly. We have never done something like this.