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The Marks Obtained by 19 Students of a Class Are Given Below: 27, 36, 22, 31, 25, 26, 33, 24, 37, 32, 29, 28, 36, 35, 27, 26, 32, 35 and 28. Find: Interquartile Range - ICSE Class 10 - Mathematics

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Question

The marks obtained by 19 students of a class are given below:
27, 36, 22, 31, 25, 26, 33, 24, 37, 32, 29, 28, 36, 35, 27, 26, 32, 35 and 28. Find: 

interquartile range 

Solution

Arranging in ascending order: 

22,24,25,26,26,27,27,28,28,29,21,32,33,35,35,36,36,37 

Interquartile range = `q_3-q_1=35-36=9`

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 Selina Solution for Selina ICSE Concise Mathematics for Class 10 (2019-20) (2020 to Current)
Chapter 24: Measure of Central Tendency(Mean, Median, Quartiles and Mode)
24C | Q: 3.4
Solution The Marks Obtained by 19 Students of a Class Are Given Below: 27, 36, 22, 31, 25, 26, 33, 24, 37, 32, 29, 28, 36, 35, 27, 26, 32, 35 and 28. Find: Interquartile Range Concept: Median of Grouped Data.
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