hpls explain the error on this table, and explain too the analysis of data & results and conclusion.

Table 2.3 Trial 1 STEEL: Theoretical value of the coefficient of linear expansion (per C) -1.2 x 105 Difference in Description Initial Reading Final Reading Readings Length of the Metal Rod, mm (A. 8m 643mm W7 679 3G Temperature of the Metal Rod. C 24 51 2S Coefficient of Linear Expansion 2.24710 Table 2.4 Trial 2 STEEL: Theoretical value of the coefficient of linear expansion (per C) -2 x 103 Difference in Description Initial Reading Final Reading Readings Length of the Metal Rod, mm 643 SAXO 679-5 90 5 Temperature of the Metal Rod. C 27 0056 29 Coefficient of Linear Expansion Table 2.5 Comparison of Results Coefficient of Linear Expansion Steel Average value 24 VIDEO Percentage error 197.132 1.967105 X Brass