Making a cumulative frequency graph can be tough because there are a few tricky spots. Here's a simple way to do it and what to watch out for:

1. Create a Cumulative Frequency Table:

   • Write down your data in intervals (like groups of numbers).
   • Carefully add up the totals as you go. It's easy to make mistakes in adding.

2. Plotting the Graph:

   • Make sure the bottom line (horizontal axis) shows the high points of your intervals.
   • The side line (vertical axis) should show the cumulative frequency.
   • Be careful when you plot your points, or your graph might end up wrong.

3. Connecting Points:

   • Use smooth curves to connect the points. Straight lines can make the data look different than it really is.

These steps can feel boring and mistakes can happen. But if you double-check your work and make sure everything is correct when you plot, you can make a much better and trustable graph.