Histograms and Frequency Density (AQA GCSE Maths): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the key feature that distinguishes histograms from regular bar charts?
What is the key feature that distinguishes histograms from regular bar charts?
Bars have different widths
What does the vertical axis of a histogram always show?
What does the vertical axis of a histogram always show?
Frequency density
What does frequency density tell us about the data?
What does frequency density tell us about the data?
How concentrated the data is
What is the formula for frequency density?
What is the formula for frequency density?
What does the area of a bar in a histogram represent?
What does the area of a bar in a histogram represent?
The frequency
A class has frequency 36 and width 5. What is the frequency density?
A class has frequency 36 and width 5. What is the frequency density?
A class has frequency density 8 and width 3. What is the frequency?
A class has frequency density 8 and width 3. What is the frequency?
Why does a narrower class with the same frequency have a higher frequency density?
Why does a narrower class with the same frequency have a higher frequency density?
Same data squeezed into smaller range
How should you compare different classes in a histogram fairly?
How should you compare different classes in a histogram fairly?
Compare areas, not heights