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In a School, 100 Pupils Have Heights as Tabulate Below: - ICSE Class 10 - Mathematics

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Question

In  a school, 100 pupils have heights as tabulate below: 

 Height (in cm )  No. of pupils 
121-130 12
131-40 16
141-150 30
151-160 20
161-170 14
171-180 8

Find the median height by drawing an ogive. 

Solution

Height (in cm) No. of pupils Cumulative Frequency 
121-130 12 12
131-140 16 28
141-150 30 58
151-160 20 78
161-170 14 92
171-180 8 100 

Number of terms =100 

∴ Median = `100/2=50^(th)` term 

Through 50th term mark draw a line parallel to the x-axis which meets the curve at A. from A, draw a perpendicular to x-axis which meets it at B. 

Value  of B is the median=148 

⇒ Median height = 148 cm

  Is there an error in this question or solution?

APPEARS IN

 Selina Solution for Selina ICSE Concise Mathematics for Class 10 (2018-2019) (2017 to Current)
Chapter 24: Measure of Central Tendency(Mean, Median, Quartiles and Mode)
24C | Q: 10
Solution In a School, 100 Pupils Have Heights as Tabulate Below: Concept: Measures of Central Tendency - Mean, Median, Mode for Raw and Arrayed Data.
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