Find the median of the data: 3, 11, 7, 2, 5, 9, 9, 2, 10, 15, 7.

Solution:

Given, the data is 3, 11, 7, 2, 5, 9, 9, 2, 10, 15, 7.

We have to find the median of the data.

When the given data is arranged in ascending (or descending) order, then the middle most observation is the median of the data.

Arranging the data in ascending order, we get

2, 2, 3, 5, 7, 7, 9, 9, 10, 11, 15

Number of observations, n = 11

If n is odd, then median = (n+1)/2 th term

Median = (11+1)/2 th term

= 12/2 th term

= 6th term

6th term = 7

Therefore, the median is 7.

✦ Try This: Find the median of the data: 12, 12, 13, 14, 16, 17, 18, 21

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 3

NCERT Exemplar Class 7 Maths Chapter 3 Sample Problem 9

Find the median of the data: 3, 11, 7, 2, 5, 9, 9, 2, 10, 15, 7

Summary:

The median of the data 3, 11, 7, 2, 5, 9, 9, 2, 10, 15, 7 is 7.

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