Back to topics
GCSE Statistics
Cumulative Frequency and Box Plots
Learn cumulative frequency and box plots as part of collect, represent, summarise and compare data using charts, averages, spread and statistical diagrams.
Key idea
Look at the data type, choose an appropriate summary or diagram, then interpret the result in context.
What you will learn
Use cumulative frequency and box plots meaning confidently.
Use cumulative frequency and box plots representations confidently.
Use cumulative frequency and box plots methods confidently.
Use cumulative frequency and box plots applications confidently.
Success checklist
✓I can explain what cumulative frequency and box plots means.
✓I can choose a suitable method without being told.
✓I can show clear working and check my answer.
Worked example
Find the mean of 4, 7, 9 and 10.
Step 1
Add the values: 4 + 7 + 9 + 10 = 30.
Step 2
There are 4 values.
Step 3
30 ÷ 4 = 7.5.
Answer
7.5
Quick practice
Question 1
Find the median of 3, 8, 4, 10, 5.
Question 2
Find the range of 11, 18, 23, 24.
Question 3
Describe positive correlation in a scatter graph.
Related resources
These are linked to the wider Statistics topic for now.