Mathematics for IGCSE & O level - Statistical Diagrams (Section 6 - No. 1)
In a cumulative frequency graph, how do you estimate the median?
Find the value on the x-axis corresponding to the maximum cumulative frequency.
Find the value on the x-axis corresponding to the cumulative frequency that is the total frequency divided by 4.
Find the value on the x-axis corresponding to the cumulative frequency that is half the total frequency.
Find the value on the y-axis corresponding to the maximum frequency.
Explanation
The median is located at the 50th percentile.