1. ( points) A math teacher would like to present the midterm results to his class in a way that shows the overall spread of the data. The 37 test scores for the test are listed below. 73 70 73 79 80 68 72 62 65 78 50 95 45 78 62 98 50 61 91 89 57 64 77 69 82 73 70 73 79 80 68 72 62 65 78 50 95 a) Construct the relative frequency histogram using 5 classes. b) What proportion of students score greater than 65 c) What percentage of students scored less than 65