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


Ex 14.2, 4 - Chapter 14 Class 9 Statistics - Part 2

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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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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.