StatisticsStep 1 of 3
Question
For class intervals 0–10, 10–20, 20–30, 30–40 with frequencies 4, 7, 10, 5, identify the median class.
4
11
21
26
0–1010–2020–3030–40
What is the total frequency N?
What you will learn
Use the $N/2$ threshold and cumulative frequencies to identify the median class before applying the median formula.
Common mistake to avoid
Choosing the class with the highest frequency finds the modal class, not necessarily the median class.
Make this mistake visibleHelpful?