Question:
15 students secured the following marks in a test in statistics.Find the median marks. 35,28,13,17,20,30,19,29,11,10,29,23,18,25,17
Answer:
Given, the score of the 15 students are:
35, 28, 13, 17, 20, 30, 19, 29, 11, 10, 29, 23, 18, 25, 17
Arrange the score in ascending order, we get
10, 11, 13, 17, 17, 18, 19, 20, 23, 25, 28, 29, 29, 30, 35
Total number of terms in the data is odd
So, Median = {(n + 1)/2}th term {n is the total number of terms}
=> Median = {(15 + 1)/2}th term
=> Median = {16/2}th term
=> Median = 8th term
=> Median = 20
Hence, the median mark of 15 students is 20
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