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By Drawing an Ogive, Estimate the Following Frequency Distribution: - ICSE Class 10 - Mathematics

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Question

By drawing an ogive, estimate the following frequency distribution: 

Weight (kg) 10-15 15-20 20-25 25-30 30-35
No.of boys 11 25 12 5 2

Solution

Weight(kg) No.of boys  Cumlative Frequency 
10-15 11 11
15-20 25 36
20-25 12 48
25-30 5 53
30-35 2 55

Number of terms=55 

∴ Median =` (55+1^("th"))/2` term = `28^("th")` term  

 

Throgh mark of 28 on the y-axis, draw a line parallel to x-axis which meets the curve at A. from A, draw a perpendiculer to x-axis , which meets x- axis at B 

The value of B is the median which is 18.4 kg . 

  Is there an error in this question or solution?

APPEARS IN

 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: 8
Solution By Drawing an Ogive, Estimate the Following Frequency Distribution: Concept: Measures of Central Tendency - Mean, Median, Mode for Raw and Arrayed Data.
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