7.2.2 Median of Grouped Data

(A) Median of Grouped Data (without Class Interval)

Example 1:

The frequency table shows the marks obtained by 40 students in a biology test.

Solution:

Median = T_{\frac{n + 1}{2}} = T_{\frac{40 + 1}{2}} = T_{20 \frac{1}{2}} = 60 \leftarrow (20 \frac{1}{2} th term is 60)