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