please help me solve and explain

- the chart below is the info for the question please let me know what the answer is out the four options for the question and how you got that answer

Given the above forecast and demand information in Question 7, what is the value of Theil's U-statistic? \begin{tabular}{l} 1.18 \\ 1.17 \\ \hline 0.018 \\ \hline 1.08 \end{tabular}