. 6. Find the mean and mode of the following tabulation: 72 (0) Age (in years) 12 13 16 L 15 16 17 M Number of Students 1 3 o 12 8 7. (ii) Height (in cm) 112 114 116 118 120 Number of Girls 3 7 6 10 4
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The heights of 50 students, measured to the nearest centimetres, have been found to be as follows:
161
162
153
154
161
151
164
159
152
159
154
171
161
153
162
165
165
170
156
167
168
158
162
158
168
161
154
165
162
159
154
156
166
160
158
162
172
168
161
153
150
160
165
173
154
151
170
164
166
159
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