Histograms and frequency polygons (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
What is the main characteristic of a histogram?
What is the main characteristic of a histogram?
No gaps between bars
What does a frequency polygon connect?
What does a frequency polygon connect?
Class midpoints
How do you find the total number of data points up to a certain class?
How do you find the total number of data points up to a certain class?
Add frequencies of bars
When creating a frequency polygon, what is the first step?
When creating a frequency polygon, what is the first step?
Calculate midpoints
What is the purpose of a frequency polygon?
What is the purpose of a frequency polygon?
Compare distributions
What should you do to finish a frequency polygon?
What should you do to finish a frequency polygon?
Join first and last points at x-axis
What often causes mistakes in drawing histograms?
What often causes mistakes in drawing histograms?
Unequal bar widths
What is a key difference between histograms and bar charts?
What is a key difference between histograms and bar charts?
Histograms have no gaps
When reading a histogram, what does the height of a bar represent?
When reading a histogram, what does the height of a bar represent?
Frequency
Why are class intervals important in histograms?
Why are class intervals important in histograms?
To group data logically