[3 marks] Using plain English, explain how your statistical test works as best you can. You might consider explaining the rationale of the formula that you used to calculate the test statistic, e.g. by explain what the formula measures and why that is a useful thing to do. You might also want to include a simple drawing showing roughly what the distribution of the test statistic looks like, and use it to explain how this distribution can help us interpret the results of experiments like Mendel's