Bar charts (AQA GCSE Maths): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What do bar charts display?
What do bar charts display?
Data from tally charts/frequency tables visually
Bar width rule
Bar width rule
All bars must be the same width
Why gaps between bars?
Why gaps between bars?
To show separate categories
Bar chart axis requirement
Bar chart axis requirement
Both axes must be clearly labelled
What does bar height/length represent?
What does bar height/length represent?
Frequency or count for that category
Vertical bar chart: axis layout
Vertical bar chart: axis layout
Categories on horizontal, frequencies on vertical
Horizontal bar chart: axis layout
Horizontal bar chart: axis layout
Categories on vertical, frequencies on horizontal
Purpose of dual bar charts
Purpose of dual bar charts
Compare two sets of related data side by side
When to use horizontal bar charts
When to use horizontal bar charts
When category names are long (more space for labels)
3 common bar chart mistakes
3 common bar chart mistakes
Wrong scale, forgetting gaps, unequal bar widths