Example 7 - Chapter 13 Class 10 Statistics

Last updated at August 2, 2026 by

Example 7 - A survey regarding heights of 51 girls of Class X

Example 7 - Chapter 14 Class 10 Statistics - Part 2
Example 7 - Chapter 14 Class 10 Statistics - Part 3 Example 7 - Chapter 14 Class 10 Statistics - Part 4

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Transcript

Example 7 A survey regarding the heights (in cm) of 51 girls of Class X of a school was conducted and the following data was obtained Find the median height. Making Normal Table Median = l + (š‘µ/šŸ āˆ’š’„š’‡)/š’‡ Ɨ h Here, š‘µ/šŸ āˆ“ 145 ā€“ 150 is the Median class And, l = lower limit of median class h = class-interval cf = cumulative frequency of the class before median class f = frequency of the median class Putting values in Formula Median = l + (š‘›/2 āˆ’š‘š‘“)/š‘“ Ɨ h = 145 + (šŸšŸ“.šŸ“ āˆ’šŸšŸ)/šŸšŸ– Ɨ 5 = 145 + 14.5/11 Ɨ 5 = 145 + 4.03 = 149.03 Therefore, Median height is 149.03 cm

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