sider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns, which represent the final grades in a course with 3 sections of equal size. The first column is C01, the second is C02, and the third is C03. A [100 100 29.87;17.91 20.07 66.17;63.35 86.56 89.68;68.06 100 55.75;37.91 30.26 65.93:23.78 71.66 100:84.07 14.71 40.11;15.48 72.34 36.31;76.22 25.79 34.89;50.68 49.43 41.61;94.9 57.32 100;94.77 99.28 100;100 100 73.73;72.96 13.65 100;57.09 100 70.67;100 34.73 95.3;100 80.76 40.03;100 54.01 99.22;100 17.66 54.74;100 87.95 100;100 97.04 71.29;65.18 96.6 63.67:47.44 15.97 40.72;44.35 69.96 74.26;35.75 56.27 52.19;100 97.4 100;83.5 100 100;16.47 55.12 100;29.83 84.45 88.65;100 95.99 25.95;20.59 55.22 100;84.73 65.02 61.85;81.62 97.56 67.76;15.57 100 94.75;100 12.76 45.91;53.71 77.95 55.19;17.63 24.22 100;17.75 100 31.28;44.98 84.65 100;62.21 58.91 25.41;75.68 68.66 96.35;19.34 38.39 61.32;93.48 49.13 100;68.45 50.5 100;78.03 94.63 42.24;58.93 56.3 100;55.04 57.7 80.43;78.85 36.79 100;70 40.46 100;89.96 50.08 85.42;86.9 93.31 56.56;15.3 29.98 73.58;32.78 17.91 40.37;36.94 53.71 94.95;17.45 41.17 63.07;55.34 97.53 79.5;75.01 72.87 100;70.19 94.63 31.31;25.68 54.15 81.26;71.31 28.4 55.48;43.09 77.56 90.36;87.84 42.45 82.67;80.5 12.07 99.13;42 51.45 100;63.14 37.59 100;59.81 71.2 66.44;98.35 60.8 67.17;38.45 100 89.78;24.44 100 75.56;100 34.91 76.39;60.16 74.52 100;44.58 82.16 72.05;27.16 78.08 100;15.59 100 74.01;22.73 93.94 100;100 100 59.26;100 43.27 91.8;72.94 28.45 85.48;38.7 99.78 34.82;62.42 21.43 97.53;35.41 58.85 68.32;100 100 81.15;71.68 51.7 38.23;31.76 67.92 100;41.2 35.82 100;100 22.44 27.51;15.53 51.31 21.41;99.47 52.49 28.36;78.7 16.48 100;20.73 100 41.62;65.92 49.36 100;100 76.3 100;100 91.09 41.76;45.04 100 63.61;66.81 71.48 86.51;51.05 19.24 88.14;16.51 20.61 94.52;100 88.95 69.56;55.81 22.83 100;49.92 25.78 67.5;90.65 100 68.51:100 60.39 62.57;99.37 75.81 100;83.08 38.63 60.5;51.12 53.65 73.41;39.37 44.13 98.65;79.24 82.17 60.13;67.2 59.74 100;100 83.19 92.65;32.72 53.16 78.18;96.56 27.92 91.08;99.5 54.22 85.44;100 27.56 98.48;100 56.71 88.02;54.67 44.25 21.81;100 44.83 31.57;89.71 100 39.09;42.05 95.15 100;25.58 74.44 100:82.92 59.2 100;95.1 82.56 37.68;83.46 89.23 80.64;25.95 97.39 25.29;21.82 77.21 95.52;67.39 69.82 65.78;35.08 93.38 48.87;100 70.36 79.35;85.72 100 75.8;77.31 97.77 56.13;41.28 45.05 74;100 94.57 85.57:85.17 51.89 70.24;89.76 18.53 21.07;41.5 15.39 41.77;96.59 100 88;95.73 60.78 100;100 88.2 66.62;42.28 19.94 100;100 66.19 48.18;41.3 32.54 100;16.64 49.45 79.18;33.59 61.03 88.45;77.73 63.07 100;100 38.68 49.92;18.52 50 98.34;33.75 83.91 89.3;19.51 76.9 47.24;20.11 100 80.75;19.45 50.18 100;61.46 65.03 84.52:54.03 74.84 89.36;43.62 76.18 100;55.81 60.68 100;100 60.06 77.33;86.73 42.24 25.74;100 33.22 68.44;100 99.88 91.91;81.77 31.15 82.76;100 48.08 100;68.54 97.3 100;100 100 49.39;62.57 59.26 95.36;49.34 100 79.02;16.27 91.61 33.45;87.5 63.06 100;91.81 66.33 22.57;72.27 100 73.94;100 88.93 100;100 100 53.15;61.41 54.46 56.53;76.72 37.18 100;34.6 79.9 100] (a) Use the colon operator to extract the marks from C03, and then find the average of those marks (using the 'sum' and 'length' commands). (b) Use vertical concatenation to create a single column vector consisting of all of the marks from all 3 sections.