The IQ scores of 50 students are given below. 91 94 88 88 107 96 86 106 99 102 92 115 106 90 119 86 115 115 101 114 105 117 86 112 88 115 101 112 118 119 87 102 115 97 112 94 96 96 89 99 100 87 99 97 104 86 114 117 100 99 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class Frequency 85 89 (b) Which of the following is the correct histogram for this data