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

ConceptMeasures of Central Tendency - Mean, Median, Mode for Raw and Arrayed Data

#### 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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