4. Please show all work step by step and formulas used to get answers in detail

Problem 4 Given the following Muther's grid with 6 departments: \begin{tabular}{cl} Code & Degree of closeness \\ & \\ A & Absolutely necessary \\ E & Very important \\ I & Important \\ O & Ordinary importance \\ U & Unimportant \\ X & Undesirable \end{tabular} Design a good layout in the following 23 facility