Question
Calculate the median. Also derive the median geometrically by drawing two ogives and locating the point of intersection.
|
Class Interval |
Frequency |
|
13-25 25-37 37-49 49-61 61-75 |
6 11 23 7 3 |
|
Total |
50 |
Solution
Median = Value of 50/2th item = 25th item
Hence median lies in 37-49 class interval.
|
Less than |
Frequency |
|
25 37 49 61 75 |
6 17 40 47 50 |
|
More than |
Frequency |
|
13 25 37 49 61 |
50 44 33 10 3 |
