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Ex 14.2, 4 - The heights of 50 students, measured to - Ex 14.2


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  1. Chapter 14 Class 9 Statistics
  2. Serial order wise
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Ex 14.2, 4 The heights of 50 students, measured to the nearest centimetres, have been found to be as follows: (i) Represent the data given above by a grouped frequency distribution table, taking the class intervals as 160 - 165, 165 - 170, etc. (ii) What can you conclude about their heights from the table? Students shorter than 165 cm = 12 + 9 + 14 = 35 = 35/50 × 100 = 70% It can be concluded that more than 50% of the students are shorter than 165 cm.

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