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Question

A football player scored the following number of goals in the 10 matches:1,3,2,5,8,6,1,4,7,9 Since the number of matches is 10 (an even number), therefore, the median =5thobservation+6thobservation2=8+62=7 Is it the correct answer and why?


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Solution

The obtained data solution in the question incorrect answer, because the data has to be ordered in either ascending or descending order before finding the median.

On arranging the data in ascending order, we obtain,

1,1,2,3,4,5,6,7,8,9

The number of observations is 10, which is even.

So, median = n2thobservation+n2+1thobservation2

=102thobservation+102+1thobservation2

=5thobservation+6thobservation2

=4+52=92=4.5

Hence, the solution given is incorrect.


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