Ysing MATLAB or Octave The following is a table showing student scores over 3 thermodynamics exams. (Column 1 = student number, Column 2 = exam 1 scores, Column 3 = exam 2 scores, Column 4= exam 3...

Ysing MATLAB or Octave

The following is a table showing student scores over 3 thermodynamics exams. (Column 1 = student number, Column 2 = exam 1 scores, Column 3 = exam 2 scores, Column 4= exam 3 scores)

              [  1 68 45 92;
                 2 83 54 93;
                 3 61 67 91;
                 4 70 66 92;
                 5 75 68 96;
                 6 82 67 90;
                 7 57 65 89;
                 8  5 69 89;
                 9 76 62 97;
                10 85 52 94;
                11 62 34 87;
                12 71 45 85;
                13 96 56 45;
                14 78 65 87;
                15 76 43 97;
                16 68 76 95;
                17 72 65 89;
                18 75 67 88;
                19 83 68 91;
                20 93 90 92];

Enter the scores matrix into MATLAB and answer the following:

a. extract the student number and scores for student 5 in a row vector named student_5

b. extract the scores for test 1 into a column vector named test_1

c. find the average and standard deviation for each exam

d. assuming each exam was worth 100 points, find each student's final average score. Display this as a two column table