3. Problem 2-29 "Following are scores on a test in the form of ranges, with the corresponding number of students in parentheses: 55-60 (2); 60-65 (4); 65-70 (7); 70-75 (7); 75-80 (1); 80-85 (6); 8590 (3); 90-95 (3); 95100 (5). Plot three histograms: (1) cell width of 5; (2) cell width of 10 starting at 50; and (3) cell width of 10 starting at 55. What general observations can be made from a comparison among the three histograms?" Sketch the histograms by hand. Then try to duplicate them with MATLAB commands and print out the histograms. Also, find a reasonable estimate of the mean value of the test scores. 3. Problem 2-29 "Following are scores on a test in the form of ranges, with the corresponding number of students in parentheses: 55-60 (2); 60-65 (4); 65-70 (7); 70-75 (7); 75-80 (1); 80-85 (6); 8590 (3); 90-95 (3); 95100 (5). Plot three histograms: (1) cell width of 5; (2) cell width of 10 starting at 50; and (3) cell width of 10 starting at 55. What general observations can be made from a comparison among the three histograms?" Sketch the histograms by hand. Then try to duplicate them with MATLAB commands and print out the histograms. Also, find a reasonable estimate of the mean value of the test scores