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.

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

Sum

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

Find the median height by drawing an ogive.

Number of terms =100

∴ Median = `100/2=50^(th)` term

Through 50^th 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

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Chapter 24 Measure of Central Tendency(Mean, Median, Quartiles and Mode)
Exercise 24 (C) | Q 10 | Page 373