First slide

Introduction to statistics

Question

The following data gives the distribution of height of students:

The median of the distribution is

Moderate

A

154
B

155
C

160
D

161

Solution

Arranging the data in ascending order of magnitude, we obtain

Here, total number of items is 41, which is an odd number.
$Hence, the median is \frac{41 + 1}{2} th = 2 1st item.$
From cumulative frequency table, wo find that median i.e., Zlst item is 155.

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