Understand the problem
1 of 3
First, understand the question
Do not start calculating until the given information and the required answer are clear.
Problem
For classes –––– with frequencies , identify the median class.
What are we trying to do?
Find the class interval containing the middle observation. This is the median class.
Build the solution one reason at a time
Read why each action is needed. Then use it to change the mathematical model.
5
14
26
30
0–1010–2020–3030–40
Helpful?