Concept: Median of '
n ' observations is the value at the central position when the data is arranged in ascending or descending order.
- For, odd
n, median is the value at the
() position.
- For even
n, median is the mean ofvalues at
() and
(+1) position.
Calculation: Writing the cumulative frequencies, we get
Since
n=198 is even, the median will be the mean of the values at
()=99th position and
99+1=100th position.
From the above table, both the
99th and
100th values are 3 .
Therefore, the median of the above data is 3 .