1
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Question

# Given the following data set, what is the value of median (2 4 3 6 1 8 9 2 5 7 ).

A
2
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B
4.7
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C
4.5
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D
10
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Solution

## The correct option is C 4.5Median is the middle most value of a series. So when the series has odd number of elements then median can be calculated easily but when the series has even number of elements then the series has two middle values, so median is calculated by taking out the average of both the value. The given series is first arranged into ascending; 1,2,2,3,4,5,6,7,8,9N= 10 median= (10+1)/2 th term = 11/2 th term = 5.5 th term = ( value of 5th term + value of 6th term)/2 = (4+5) /2 = 9/2 = 4.5

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