Sec. 4. In order to compute the assessment ratio for a school corporation, the department of local government finance shall first make a random sampling of the assessed values and true tax values of the following classes of real and personal property:
(1) Residential. (2) Farm. (3) Commercial. (4) Industrial. [Pre-1975 Property Tax Recodification Citations: 6-1-66-3 part; 6-1-66-4 part.] Formerly: Acts 1975, P.L.47, SEC.1. As amended by P.L.24-1986, SEC.29; P.L.90-2002, SEC.240.