Grouping Data (Grade 10 NSC Matric Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of data is grouping primarily used for?
What type of data is grouping primarily used for?
Continuous quantitative data
Which rule must class intervals follow?
Which rule must class intervals follow?
Non-overlapping ranges
What does complete coverage mean for class intervals?
What does complete coverage mean for class intervals?
Ranges cover entire span of dataset
In a histogram, how are the rectangles positioned?
In a histogram, how are the rectangles positioned?
They touch each other with no gaps
What is the modal group?
What is the modal group?
Class interval with highest frequency
What does the height of each rectangle represent in a histogram?
What does the height of each rectangle represent in a histogram?
The frequency for that interval
What do we trade when grouping continuous data?
What do we trade when grouping continuous data?
Precision for clarity
How many groups should you aim for in most datasets?
How many groups should you aim for in most datasets?
5-8 groups
What is the median group?
What is the median group?
Class with the middle value in order
What must you ensure about class interval ranges?
What must you ensure about class interval ranges?
No overlaps and full coverage