I am trying to make a formula type question as a lab report for students. For example, there are 6 groups of students, each having their set of experimental results that are used for calculation.

For example, in given picture there is a set of data for V and t. This is experimental data. V values can be fixed. Both, t and V are included in calculation of results in part 1. The question is: ca each group of students enter their own results for t? The only thing is that I don't know the correct answer in advance since it is the results of laboratory practice. I have tried to define the answer as data set, but keep receiving the wrong result.

Any suggestion is welcome because I'm stuck!