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Answer :
i) A grouped frequency distribution table has to be constructed taking class intervals
160 -165, 165 - 170, etc. by observing the data given above, the required table can be
constructed as follows.
Height (in cm) | Number of students (frequency) |
150 - 155 | 12 |
155 - 160 | 9 |
160 - 165 | 14 |
165 - 170 | 10 |
170 - 175 | 5 |
Total | 50 |