The data given below relate to the marks obtained by 20 students in two subjects A and B. Prepare a two-way frequency table with class-intervals 62-64, 64-66 and so on for subject A and 115-125, 125-135, and so on for subject B. Marks in Serial No. Serial No. Marks in Marks in Marks in subject A Serial No. Marks in Marks in subject B subject A subject B subject A subject B 152 67 117 65 15 134 68 170 70 9. 128 70 16 140 67 135 65 10 143 71 17 132 69 11 129 62 18 120 66 4 136 65 12 163 70 19 148 88 137 64 13 139 67 20 129 67 6. 148 69 124 63 14 122 63

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