Grouping data (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why do we group data in statistics?
Why do we group data in statistics?
To see patterns clearly
What are class intervals?
What are class intervals?
Groups with no overlap
What do upper and lower class boundaries define?
What do upper and lower class boundaries define?
Group limits
How is class width calculated?
How is class width calculated?
Difference of boundaries
Why aim for 5-10 groups in data?
Why aim for 5-10 groups in data?
Reveal patterns clearly
How should continuous data be grouped?
How should continuous data be grouped?
Using inequality notation
When creating class intervals, what should the first interval do?
When creating class intervals, what should the first interval do?
Start at or below minimum
What type of data requires careful interval handling?
What type of data requires careful interval handling?
Continuous data
How can you check your class intervals are correct?
How can you check your class intervals are correct?
Ensure no gaps or overlaps
What should you do if a new taller data point joins?
What should you do if a new taller data point joins?
Add open-ended interval