Problem #1: (a) Find the value of the following product: 4 9 14 Problem #1(a): Problem...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Problem #1: (a) Find the value of the following product: 4 9 14 Problem #1(a): Problem #1(b): Hint: Use the colon operator to produce the vector [4 9 14 ... 239], and then find the product of the elements of that vector. (b) Find the value of the following sum: 13 +21 + 29 + Just Save Submit Problem #1 for Grading Problem #1 Attempt #1 Your Answer: 1(a) 1(b) Your Mark: 1(a) 1(b) Attempt #2 1(a) 1(b) 1(a) 1(b) Attempt #3 1(a) 1(b) 239 1(a) 1(b) + 781 Problem #2: Consider 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 CO2, and the third is C03. Problem #2(a): Problem #2(b): A = [72.69 32.58 100;57.02 89.79 96.67;15.93 35.49 46.95;73.98 100 63.66;63.45 86.99 47.45;23.98 93.73 87.19;100 64.94 31.27;29.41 56.31 23.67;71.89 100 100;100 81.11 31.08;66.54 91.22 80.57;57.2 10.91 90.74;94.32 16.76 74.21;55.25 100 50.76;95.16 76.03 23.8;84.55 93.9 96.33;42.95 100 53.02;100 53.23 80.88;70.23 58.41 100;86.54 94.18 42.71;100 86.42 65.56;56.99 43.62 33.36;47.82 13.7 91.13;51.16 49.51 72.49;78.01 20.32 54.99;77.56 95.34 30.01;40.13 86.58 96.24;30.47 68.45 77;65.33 23.26 100;23.5 64.2 66.65;69.82 74.73 78.22;56.27 43.34 100;51.4 60.57 76.66;58.4 40.38 57.31;70.8 44.75 37.83;16.74 41.15 49.49;64.67 92.57 20.01;94.7 18.52 100;56.77 88.08 87.28;31.47 50.66 100;20.89 64.01 47.89;100 79.56 61.32;32.57 22.67 51.53;32.5 100 48.4;54.37 62.26 39.42;39.53 97.78 70.21;70 94.58 39.06;27.89 91.27 79.93;88.28 41.02 100;98.63 22.79 58.41;92.33 35.52 91.67;34.83 87.87 33.58;47.76 55.69 100;58.04 13.86 27.48;99.44 100 25.44;36.12 33.34 100;29.71 61.6 81.66;78.16 98.9 94.38;93.26 34.1 56.92;26.55 18.53 90.25;42.48 28.47 48.35;43.8 79.31 43.33;68.09 15.79 100;90.97 61.66 76.4;100 25.59 66.35;45.8 100 52.92;43.77 76.24 82.21;55.13 100 99.42;23.56 92.87 23.49;77.2 54.38 63.61;96.39 29.34 78.64;31.03 83.35 100;15.79 32.85 88.08;100 25.03 39.93;100 57.67 65.78;23.78 71.09 98;46.1 68.02 26.4;38.1 50.01 29.85;81.87 64.83 100;91.75 44.66 48.72;39.76 81.26 82.2;80.37 85.26 23.38;79.19 84.73 65.7;94.59 87.39 56.04;66.52 97.69 54.79;31.49 93.21 96.87;58.84 44.37 36.4;57.17 29.27 100;92.77 49.97 93.56;48.84 100 25.06;54.06 100 100;96.56 60.54 30.16;69.82 55.17 94.21;49.09 34.71 100;55.15 56.85 33.39;52.57 61.57 100;61.76 76.09 53.27;32.08 98.75 47.84;67.22 63.39 59.62;85.4 100 97.2;95.78 22.69 86.62;29.25 14.34 100;100 27.94 81.41;78.63 19.78 55.47;50.82 32.34 53.68;17.95 100 88.61;100 78.85 27.05;100 57.17 38.85;69.56 56.43 100;57.47 89.86 30.74;19.56 19.9 71.17;93.87 14.94 75.74;20.83 31.41 73.11;89.1 36.98 98.58;69.72 23.91 100;63.47 32.34 100;100 50.02 100;55.78 56.09 63.75;82.1 37.95 84.63;45.04 30.77 77.84;64.51 26.94 38.59;85.45 29.61 54.84;42.44 66.84 23.5;44.67 61 98.86;34.2 16.08 74.35;64.54 88.19 25.62;40.63 100 38.82;38.21 30.89 46.58;100 89.22 100;25.03 24.71 66.16;36.66 28.9 26.06;97.15 11.94 96.18;93.05 70.95 100;17.83 53.75 71.09;35.69 81.08 39.27;71.7 36.42 37.68;36.77 15 85.27;55.84 81.37 75.4;71.71 25.53 61;46.42 32.61 38.98;16.9 41.57 70.62;100 65.94 92.19;64.43 58.27 100;41.02 68.92 36.33;41.98 55.83 46.39;22.18 30.05 40.63;26.29 69.13 97.36;50.51 15.81 83.23;91.33 40.64 22.76;88.03 49.65 100;62.96 12.12 62.72;16.28 13.06 83.82;100 47.07 100;40.73 90.17 66.94;22.91 42.16 64.57;100 80.64 55.53;44.47 77.03 74.55;70.21 99.22 99.95;26.52 82.89 77.11;100 43.74 38;53.11 18.68 85.8;77.3 35.05 53.94;17.44 100 100;91.6 32.16 100;97.24 35.02 100;50.26 41.96 100;41.99 100 84.49;69.24 44.6 100;71.34 60.83 29;50.76 10.64 56.53;91.85 22.6 30.16;49.06 20.92 100] (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. Then find the overall class average. Problem #3: Suppose that A is a 10 10 matrix, and we want to extract a submatrix consisting of rows 5 to 9, and columns 4 to 8 of A. What single Matlab command (using 10 characters or less) could accomplish this? (Assume that the matrix A has already been defined in Matlab, and has been called A.) Problem #3: Note that for this question you should test your answer to see if it works. For this purpose it would be useful to have a 10 x 10 matrix sitting around somewhere. There are several ways to quickly generate matrices in Matlab. For example, rand(10) will produce a 10 10 matrix whose entries are random numbers between 0 and 1. magic (10) will produce a 10 10 magic square matrix. Problem #4: Just Save Submit Problem #3 for Grading Problem #3 Attempt #1 Your Answer: Your Mark: Attempt #2 Problem #4: Open up your 'my_script.m' file that you created while working through Tutorial 2. Then copy and paste the 9 commands from the curve fitting example in Section 2.2 into your script file (you can delete any other commands that are in the file). Then save and execute your script file and make sure that the output produced (including the graph) agrees with the ouptut in the tutorial file. You should not proceed with the below question until this has been done correctly. Attempt #3 By modifying the appropriate lines in your script file, find the values of a, b, c, and d so that the cubic polynomial y = ax + bx + cx + d passes through the (x, y) pairs (-3, 2), (-2, 5), (-1, -2), and (0, 3). Just Save Note that to check your answer you can plot the given points together with your cubic polynomial on the same graph, and check to see that all 4 points lie on the curve (as in the tutorial file). Note that you will likely have to modify the t vector so that it corresponds with the range of x-values above. separate your answers with a comma Submit Problem #4 for Grading Problem #5: Find the values of a, b, c, and d so that the cubic polynomial y = ax + bx + cx + d provides the best fit to the following (x, y) pairs in the least squares sense: (-4, -10), (-3, 2), (-2, 5), (-1, -2), (0, 3), (1, 12). Problem #5: Note that to check your answer you can plot the given points together with your cubic polynomial on the same graph, and check to see that all 6 points lie fairly close to the curve (as in the tutorial file). But note that the curve might not pass directly through any of the 6 points. Just Save separate your answers with a comma Submit Problem #5 for Grading Problem #6: Consider the below vector x, which you can copy and paste directly into Matlab. The vector contains the final grades for each student in a large linear algebra course. Problem #6(a): Problem #6(b): x = [44 55 33 40 59 48 80 66 80 45 66 50 54 76 62 62 53 75 56 71 67 38 80 76 70 52 75 68 61 61 69 66 77 56 66 57 53 58 76 67 51 46 39 67 65 75 63 70 75 60 80 56 49 68 76 71 68 59 61 69 57 68 79 56 75 84 66 68 75 79 63 60 81 61 52 74 28 49 41 74 47 84 63 65 66 77 57 63 76 47 63 59 64 51 62 56 68 60 63 64 77 52 55 72 38 67 61 65 60 81 90 49 54 65 58 64 54 59 66 54 67 49 67 71 74 67 36 71 79 55 75 65 83 58 66 69 67 69 80 49 81 79 37 65 94 69 55 77 56 52 65 46 52 90 64 54 72 69 60 63 70 60 66 61 53 44 70 70 41 61 60 55 70 48 69 47 67 78 63 68 49 47 57 76 76 55 69 92 86 75 56 71 54 65 37 55 50 60 46 84 51 62 79 70 65 57 46 73 64 64 35 63 66 77 71 74 58 56 61 59 55 72 57 68 52 59 50 82 67 66 65 75 64 59 77 79 88 56 55 54 60 57 72 42 63 62 58 49 86 72 69 71 59 40 77 64 80 62 61 73 48 71 46 64 67 59 60 83 65 74 56 63 55 57 65 55 46 50 61 67 71 69 54 69 56 57 71 59 74 50 48 69 73 46 79 61 68 54 74 58 56 66 53 64 56 94 67 58 67 51 66 76 63 69 67 69 69 57 44 53 79 84 80 72 39 62 82 79 70 72 56 62 70 71 49 65 56 63 83 45 62 58 67 58 65 47 71 70 83 63 60 77 89 70 77 61 66 72 63 78 64 75 56 55 55 29 57 64 72 58 56 50 59 71 57 81 85 64 62 68 48 58 47 62 56 48 67 79 66 57 76 45 69 58 62 60 79 62 54 43 53 55 88 81 61 70 69 67 45 50 73 53 57 71 56 65 48 79 61 63 54 54 68 52 68 41 87 88 60 51 70 71 58 61 76 58 63 53 65 70 52 78 72 56 81 58 66 47 58 51 66 54 75 54 78 60 73 72 51 28 60 70 64 75 65 84 59 52 53 58 54 55 68 59 63 46 71 55 70 74 53 45 61 47 57 73 82 58 79 79 71 67 73 72 68 50 64 70 81 47 69 46 68 86 64 56 60 66 78 60 65 76 62 61 71 60 73 63 66 59 68 57 74 64 75 65 65 63 48 61 64 73 73 67 49 58 62 71 47 67 59 56 81 57 54 73 60 41 63 66 70 54 61 59 70 61 55 75 51 57 68 75 74 58 44 63 46 70 62 68 47 64 63 55 68 64 68 48 48 64 61 53 71 63 68 56 86 78 63 79 70 60 84 66 54 78 63 50 62 57 64 66 38 71 68 82 62 50 67 56 70 52 70 39 35 67 57 73 50 57 64 66 64 54 69 56 71 70 62 76 79 57 89 46 60 59 56 53 78 69 57 59 77 66 66 61 59 51 67 52 52 56 58 59 63 42 62 71 78 57 69 67 50 61 50 83 56 88 57 42 48 74 43 43 57 75 74 54 75 56 63 71 66 61 67 75 62 69 76 63 64 81 71 66 67 63 65 62 72 76 52 73 70 50 69 81 43 62 66 49 72 73 59 65 52 70 54 60 68 79 64 64 47 58 65 54 69 60 78 77 71 54 45 53 50 68 69 77 81 77 69 83 70 48 50 46 59 48 57 70 64 58 58 69 70 66 65 43 45 56 67 58 84 70 65 78 70 57 88 51 56 76 66 81 54 56 78 56 77 45 64 64 75 60 41 56 47 52 61 65 53 65 79 57 75 65 77 64 62 66 65 81 70 71 71 69 65 71 65 66 60 56 51 57 55 57 72 54 73 54 61 77 68 55 87 81 66 54 52 93 71 67 46 67 68 62 72 82 71 75 79 52 84 50 64 64 49 50 64 63 58 55 56 75 79 68 66 61 56 51 74 89 85 72 64 53 54 56 57 57 57 71 54 91 83 65 64 54 61 53 58 66 76 65 42 66 54 53 62 67 73 82 56 53 64 63 58 55 57 74 86 77 74 79 49 69 48 68 87 77 53 44 66 57 61 62 42 77 66 49 67 98 75 42 63 55 67 83 92 66 52 80 67 85 59 67 78 59 62 58 62 62 57 59 69 56 90 64 56 54 78 70 54 60 87 64 48 65 69 76 93 77 46 64 78 68 68 56 64 69 63 64 66 63 39 52 52 54 77 83 58 38 73 88 76 82 45 81 62 70 83 66 46 63 79 45 70 50 52 72 62 66 69 54 62 61 61 75 66 54 61 66 84 60 33 59 62 72 73 73 68 53 49 54 71 83 62 78]' (a) What proportion of students failed the course (i.e., got a mark of less than 50)? (Note that since the answer is a proportion, it must be between 0 and 1.) (b) What proportion of students got a B-, B, or B+ (i.e., got a mark between 70 and 79, inclusive)? Problem #7: Suppose that x is a vector and we want to raise every component of the vector x to the power 4, and we want to know how long Matlab took to perform this calculation. What Matlab commands (using 12 characters or less) could achieve this? Problem #7: Just Save Note that your answer must produce the desired result when copied and pasted directly into Matlab (assuming that the vector x has already been defined) Submit Problem #7 for Grading Problem #1: (a) Find the value of the following product: 4 9 14 Problem #1(a): Problem #1(b): Hint: Use the colon operator to produce the vector [4 9 14 ... 239], and then find the product of the elements of that vector. (b) Find the value of the following sum: 13 +21 + 29 + Just Save Submit Problem #1 for Grading Problem #1 Attempt #1 Your Answer: 1(a) 1(b) Your Mark: 1(a) 1(b) Attempt #2 1(a) 1(b) 1(a) 1(b) Attempt #3 1(a) 1(b) 239 1(a) 1(b) + 781 Problem #2: Consider 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 CO2, and the third is C03. Problem #2(a): Problem #2(b): A = [72.69 32.58 100;57.02 89.79 96.67;15.93 35.49 46.95;73.98 100 63.66;63.45 86.99 47.45;23.98 93.73 87.19;100 64.94 31.27;29.41 56.31 23.67;71.89 100 100;100 81.11 31.08;66.54 91.22 80.57;57.2 10.91 90.74;94.32 16.76 74.21;55.25 100 50.76;95.16 76.03 23.8;84.55 93.9 96.33;42.95 100 53.02;100 53.23 80.88;70.23 58.41 100;86.54 94.18 42.71;100 86.42 65.56;56.99 43.62 33.36;47.82 13.7 91.13;51.16 49.51 72.49;78.01 20.32 54.99;77.56 95.34 30.01;40.13 86.58 96.24;30.47 68.45 77;65.33 23.26 100;23.5 64.2 66.65;69.82 74.73 78.22;56.27 43.34 100;51.4 60.57 76.66;58.4 40.38 57.31;70.8 44.75 37.83;16.74 41.15 49.49;64.67 92.57 20.01;94.7 18.52 100;56.77 88.08 87.28;31.47 50.66 100;20.89 64.01 47.89;100 79.56 61.32;32.57 22.67 51.53;32.5 100 48.4;54.37 62.26 39.42;39.53 97.78 70.21;70 94.58 39.06;27.89 91.27 79.93;88.28 41.02 100;98.63 22.79 58.41;92.33 35.52 91.67;34.83 87.87 33.58;47.76 55.69 100;58.04 13.86 27.48;99.44 100 25.44;36.12 33.34 100;29.71 61.6 81.66;78.16 98.9 94.38;93.26 34.1 56.92;26.55 18.53 90.25;42.48 28.47 48.35;43.8 79.31 43.33;68.09 15.79 100;90.97 61.66 76.4;100 25.59 66.35;45.8 100 52.92;43.77 76.24 82.21;55.13 100 99.42;23.56 92.87 23.49;77.2 54.38 63.61;96.39 29.34 78.64;31.03 83.35 100;15.79 32.85 88.08;100 25.03 39.93;100 57.67 65.78;23.78 71.09 98;46.1 68.02 26.4;38.1 50.01 29.85;81.87 64.83 100;91.75 44.66 48.72;39.76 81.26 82.2;80.37 85.26 23.38;79.19 84.73 65.7;94.59 87.39 56.04;66.52 97.69 54.79;31.49 93.21 96.87;58.84 44.37 36.4;57.17 29.27 100;92.77 49.97 93.56;48.84 100 25.06;54.06 100 100;96.56 60.54 30.16;69.82 55.17 94.21;49.09 34.71 100;55.15 56.85 33.39;52.57 61.57 100;61.76 76.09 53.27;32.08 98.75 47.84;67.22 63.39 59.62;85.4 100 97.2;95.78 22.69 86.62;29.25 14.34 100;100 27.94 81.41;78.63 19.78 55.47;50.82 32.34 53.68;17.95 100 88.61;100 78.85 27.05;100 57.17 38.85;69.56 56.43 100;57.47 89.86 30.74;19.56 19.9 71.17;93.87 14.94 75.74;20.83 31.41 73.11;89.1 36.98 98.58;69.72 23.91 100;63.47 32.34 100;100 50.02 100;55.78 56.09 63.75;82.1 37.95 84.63;45.04 30.77 77.84;64.51 26.94 38.59;85.45 29.61 54.84;42.44 66.84 23.5;44.67 61 98.86;34.2 16.08 74.35;64.54 88.19 25.62;40.63 100 38.82;38.21 30.89 46.58;100 89.22 100;25.03 24.71 66.16;36.66 28.9 26.06;97.15 11.94 96.18;93.05 70.95 100;17.83 53.75 71.09;35.69 81.08 39.27;71.7 36.42 37.68;36.77 15 85.27;55.84 81.37 75.4;71.71 25.53 61;46.42 32.61 38.98;16.9 41.57 70.62;100 65.94 92.19;64.43 58.27 100;41.02 68.92 36.33;41.98 55.83 46.39;22.18 30.05 40.63;26.29 69.13 97.36;50.51 15.81 83.23;91.33 40.64 22.76;88.03 49.65 100;62.96 12.12 62.72;16.28 13.06 83.82;100 47.07 100;40.73 90.17 66.94;22.91 42.16 64.57;100 80.64 55.53;44.47 77.03 74.55;70.21 99.22 99.95;26.52 82.89 77.11;100 43.74 38;53.11 18.68 85.8;77.3 35.05 53.94;17.44 100 100;91.6 32.16 100;97.24 35.02 100;50.26 41.96 100;41.99 100 84.49;69.24 44.6 100;71.34 60.83 29;50.76 10.64 56.53;91.85 22.6 30.16;49.06 20.92 100] (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. Then find the overall class average. Problem #3: Suppose that A is a 10 10 matrix, and we want to extract a submatrix consisting of rows 5 to 9, and columns 4 to 8 of A. What single Matlab command (using 10 characters or less) could accomplish this? (Assume that the matrix A has already been defined in Matlab, and has been called A.) Problem #3: Note that for this question you should test your answer to see if it works. For this purpose it would be useful to have a 10 x 10 matrix sitting around somewhere. There are several ways to quickly generate matrices in Matlab. For example, rand(10) will produce a 10 10 matrix whose entries are random numbers between 0 and 1. magic (10) will produce a 10 10 magic square matrix. Problem #4: Just Save Submit Problem #3 for Grading Problem #3 Attempt #1 Your Answer: Your Mark: Attempt #2 Problem #4: Open up your 'my_script.m' file that you created while working through Tutorial 2. Then copy and paste the 9 commands from the curve fitting example in Section 2.2 into your script file (you can delete any other commands that are in the file). Then save and execute your script file and make sure that the output produced (including the graph) agrees with the ouptut in the tutorial file. You should not proceed with the below question until this has been done correctly. Attempt #3 By modifying the appropriate lines in your script file, find the values of a, b, c, and d so that the cubic polynomial y = ax + bx + cx + d passes through the (x, y) pairs (-3, 2), (-2, 5), (-1, -2), and (0, 3). Just Save Note that to check your answer you can plot the given points together with your cubic polynomial on the same graph, and check to see that all 4 points lie on the curve (as in the tutorial file). Note that you will likely have to modify the t vector so that it corresponds with the range of x-values above. separate your answers with a comma Submit Problem #4 for Grading Problem #5: Find the values of a, b, c, and d so that the cubic polynomial y = ax + bx + cx + d provides the best fit to the following (x, y) pairs in the least squares sense: (-4, -10), (-3, 2), (-2, 5), (-1, -2), (0, 3), (1, 12). Problem #5: Note that to check your answer you can plot the given points together with your cubic polynomial on the same graph, and check to see that all 6 points lie fairly close to the curve (as in the tutorial file). But note that the curve might not pass directly through any of the 6 points. Just Save separate your answers with a comma Submit Problem #5 for Grading Problem #6: Consider the below vector x, which you can copy and paste directly into Matlab. The vector contains the final grades for each student in a large linear algebra course. Problem #6(a): Problem #6(b): x = [44 55 33 40 59 48 80 66 80 45 66 50 54 76 62 62 53 75 56 71 67 38 80 76 70 52 75 68 61 61 69 66 77 56 66 57 53 58 76 67 51 46 39 67 65 75 63 70 75 60 80 56 49 68 76 71 68 59 61 69 57 68 79 56 75 84 66 68 75 79 63 60 81 61 52 74 28 49 41 74 47 84 63 65 66 77 57 63 76 47 63 59 64 51 62 56 68 60 63 64 77 52 55 72 38 67 61 65 60 81 90 49 54 65 58 64 54 59 66 54 67 49 67 71 74 67 36 71 79 55 75 65 83 58 66 69 67 69 80 49 81 79 37 65 94 69 55 77 56 52 65 46 52 90 64 54 72 69 60 63 70 60 66 61 53 44 70 70 41 61 60 55 70 48 69 47 67 78 63 68 49 47 57 76 76 55 69 92 86 75 56 71 54 65 37 55 50 60 46 84 51 62 79 70 65 57 46 73 64 64 35 63 66 77 71 74 58 56 61 59 55 72 57 68 52 59 50 82 67 66 65 75 64 59 77 79 88 56 55 54 60 57 72 42 63 62 58 49 86 72 69 71 59 40 77 64 80 62 61 73 48 71 46 64 67 59 60 83 65 74 56 63 55 57 65 55 46 50 61 67 71 69 54 69 56 57 71 59 74 50 48 69 73 46 79 61 68 54 74 58 56 66 53 64 56 94 67 58 67 51 66 76 63 69 67 69 69 57 44 53 79 84 80 72 39 62 82 79 70 72 56 62 70 71 49 65 56 63 83 45 62 58 67 58 65 47 71 70 83 63 60 77 89 70 77 61 66 72 63 78 64 75 56 55 55 29 57 64 72 58 56 50 59 71 57 81 85 64 62 68 48 58 47 62 56 48 67 79 66 57 76 45 69 58 62 60 79 62 54 43 53 55 88 81 61 70 69 67 45 50 73 53 57 71 56 65 48 79 61 63 54 54 68 52 68 41 87 88 60 51 70 71 58 61 76 58 63 53 65 70 52 78 72 56 81 58 66 47 58 51 66 54 75 54 78 60 73 72 51 28 60 70 64 75 65 84 59 52 53 58 54 55 68 59 63 46 71 55 70 74 53 45 61 47 57 73 82 58 79 79 71 67 73 72 68 50 64 70 81 47 69 46 68 86 64 56 60 66 78 60 65 76 62 61 71 60 73 63 66 59 68 57 74 64 75 65 65 63 48 61 64 73 73 67 49 58 62 71 47 67 59 56 81 57 54 73 60 41 63 66 70 54 61 59 70 61 55 75 51 57 68 75 74 58 44 63 46 70 62 68 47 64 63 55 68 64 68 48 48 64 61 53 71 63 68 56 86 78 63 79 70 60 84 66 54 78 63 50 62 57 64 66 38 71 68 82 62 50 67 56 70 52 70 39 35 67 57 73 50 57 64 66 64 54 69 56 71 70 62 76 79 57 89 46 60 59 56 53 78 69 57 59 77 66 66 61 59 51 67 52 52 56 58 59 63 42 62 71 78 57 69 67 50 61 50 83 56 88 57 42 48 74 43 43 57 75 74 54 75 56 63 71 66 61 67 75 62 69 76 63 64 81 71 66 67 63 65 62 72 76 52 73 70 50 69 81 43 62 66 49 72 73 59 65 52 70 54 60 68 79 64 64 47 58 65 54 69 60 78 77 71 54 45 53 50 68 69 77 81 77 69 83 70 48 50 46 59 48 57 70 64 58 58 69 70 66 65 43 45 56 67 58 84 70 65 78 70 57 88 51 56 76 66 81 54 56 78 56 77 45 64 64 75 60 41 56 47 52 61 65 53 65 79 57 75 65 77 64 62 66 65 81 70 71 71 69 65 71 65 66 60 56 51 57 55 57 72 54 73 54 61 77 68 55 87 81 66 54 52 93 71 67 46 67 68 62 72 82 71 75 79 52 84 50 64 64 49 50 64 63 58 55 56 75 79 68 66 61 56 51 74 89 85 72 64 53 54 56 57 57 57 71 54 91 83 65 64 54 61 53 58 66 76 65 42 66 54 53 62 67 73 82 56 53 64 63 58 55 57 74 86 77 74 79 49 69 48 68 87 77 53 44 66 57 61 62 42 77 66 49 67 98 75 42 63 55 67 83 92 66 52 80 67 85 59 67 78 59 62 58 62 62 57 59 69 56 90 64 56 54 78 70 54 60 87 64 48 65 69 76 93 77 46 64 78 68 68 56 64 69 63 64 66 63 39 52 52 54 77 83 58 38 73 88 76 82 45 81 62 70 83 66 46 63 79 45 70 50 52 72 62 66 69 54 62 61 61 75 66 54 61 66 84 60 33 59 62 72 73 73 68 53 49 54 71 83 62 78]' (a) What proportion of students failed the course (i.e., got a mark of less than 50)? (Note that since the answer is a proportion, it must be between 0 and 1.) (b) What proportion of students got a B-, B, or B+ (i.e., got a mark between 70 and 79, inclusive)? Problem #7: Suppose that x is a vector and we want to raise every component of the vector x to the power 4, and we want to know how long Matlab took to perform this calculation. What Matlab commands (using 12 characters or less) could achieve this? Problem #7: Just Save Note that your answer must produce the desired result when copied and pasted directly into Matlab (assuming that the vector x has already been defined) Submit Problem #7 for Grading
Expert Answer:
Related Book For
Posted Date:
Students also viewed these databases questions
-
a. Example 13-1: Batch Reactor with an Exothermic Reaction Wolfram 1. Adiabatic Case: Use Wolfram to see whether you can find a trajectory that is ready to ignite and whose trajectory looks like a...
-
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...
-
Data for Sabanci Holding can be found in the table below. Theincome statement items correspond to revenues or costs during theyear ending in either 2018 or 2019. The balance sheet itemscorrespond t 2...
-
Expected quarterly unit sales for tents at Sandy's Camping Gear are 7,500, 8,800, 3,200, and 2,900 for the next two years. At the start of the current year, inventory of finished tents on hand is 750...
-
The following are the balance, receipts and issues of stocks for Tamapo s inventory for the month of January 2 0 1 9 . 1 January 2 0 1 9 opening balance of 2 , 0 0 0 . 0 0 units at P 2 . 0 2 per unit...
-
What is an attorneys lien?
-
Lundquist, Inc., uses the group depreciation method for its furniture account. The depreciation rate used for furniture is 21%. The balance in the furniture account on December 31, 2010, was...
-
Fig.15.38 shows a compound epicyclic gear train in which two sun gears S, and S, are integral with the input shaft X. The arm B, is integral with the output shaft Y. The planet gear P2 revolves on a...
-
What is the difference between an exothermic and an endothermic reaction?
-
A tin of cat food weighing 28 g is placed at the top of a dry chopping board made of wood and the board is slowly raised in angle until the tin slides downwards. Measured by the mid-point of a...
-
For the following two questions, consider pure helium gas passing through a 1-meter-long plastic pipe. The outer radius of the pipe is 1 cm, and the inner radius is 0.8 cm. The pipe has a temperature...
-
Tell me about the promotional strategies of your product and recommend what you would do differently (Chapter 12- 15) (Due Sunday, April, 30) Promotional Mix Advertising (Chapter 12) Direct and...
-
Find the slope of the line passing through the points (-7, 8) and (5, -7). 0 Uiddeed 3
-
Now that we're talking about Operant Conditioning, learner's choice, where they emit a behavior (response) first, in order to get/avoid a stimulus (reinforcement/punishment), let's take it slow and...
-
Draw block diagram of 4-bit arithmetic circuit and explain it in detail.
-
If |62x|>9, which of the following is a possible value of x? A. 2 B. 1 C. 0 D. 4 E. 7
-
1. Reactant A has been unsuccessful in courting/dating reactant B because of a completing reaction. The matchmaker advises that the only way a will succeed is to raise the temperature. Is this a...
-
a. Wolfram and Python i. Explain how I would change if the concentrations of CS 2 and M were increased. ii. Explain how the light intensity varies with an increase in concentration of M. iii. Write...
-
Gasoline shortages in the United States have produced long lines of motorists at service stations. The table below shows a distribution of the times required to obtain gasoline at 23 Center County...
-
How does the auditors professional duty of confidence affect disclosures to third parties?
-
When can auditors disclose unlawful acts to the police?
-
What should auditors do if they discover an unlawful act?
Study smarter with the SolutionInn App