1.

Find out the median of this data 1, 2, 5, 6, 9, 20, 12, 23 and 11 .1. 12. 53. 94. 11

Answer» Correct Answer - Option 3 : 9

Concept used :

The median is the middle number in a data set when the numbers are listed in either ascending or descending order.

If total number of observation (n) is odd then, Median = (n + 1)th/2 observation

If total number of observation (n) is even then, Median = [(n/2)th + (n/2 + 1)th]/2 observation

Calculations :

Arrange this data in ascending order 

Arranged data = 1, 2, 5, 6, 9, 11, 12, 20, 23

n = 9 which is odd

Median = (9 + 1)/2 = 5th observation

5th observation of the data is 9

∴ Median = 9 (middle value of the set)

Median of this set is 9 

 



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