The IQ scores of 50 students are given below. 85 85 85 85 85 86 87 88 88 89 90 90 90 90 91 92 92 93 93 93 94 94 95 96 96 97 99 99 100 101 101 103 103 103 104 104 105 105 105 107 107 107 109 110 112 114 115 117 118 119 (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