Q. 9 A5

# If the median of

Answer :

We have arranged data,

8, 9, 12, 17, x + 2, x + 4, 30, 31, 34, 39

Median = 15

Total number of data values, n = 10

Since, n is even, median will be given by  Median = The mean of 5th term and 6th term

Median = The mean of (x + 2) and (x + 4)  30 = 2x + 6

2x = 30 – 6

2x = 24 x = 12

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