Question
Find the median of the following data: 13, 15, 18, 14, 22, 42, 9, 6, 15, 21.
Answer: Option B
:
B
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:
B
Median is the middle observation of the given data, when arranged in either ascending or descending order.
Arranging the observations in ascending order, we get
6, 9, 13 , 14, 15, 15, 18, 21, 22, 42
Since, there are even number of observations.
Now median,
= Average of ( n2)th observation and (n2+1)th observation
= 5th term + 6th term2
= 15+152
= 15
Thus, median of the given data is 15.
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