Bar charts (Edexcel GCSE Statistics): Flashcards
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Practise the cards
9 cards from this deck
Proper axis setup for bar chart?
Proper axis setup for bar chart?
Y-axis starts at 0 & increases in equal steps.
Why use vertical line graphs?
Why use vertical line graphs?
Clear display when many categories or for less clutter.
How to get total from bar heights?
How to get total from bar heights?
Add frequency values
Why must y-axis start at 0 on bar chart?
Why must y-axis start at 0 on bar chart?
Prevents visual distortion of comparisons
Total surveyed if counts 12,15,10,8
Total surveyed if counts 12,15,10,8
12+15+10+8=45 people
How ensure bars aren't misleading visually?
How ensure bars aren't misleading visually?
Equal bar widths & equal gaps
Do vertical line graphs follow bar rules?
Do vertical line graphs follow bar rules?
Yes: same construction & reading rules
Why use equal bar width & spacing?
Why use equal bar width & spacing?
Ensures fair visual comparison across categories
When to use vertical line (stick) graph?
When to use vertical line (stick) graph?
Use when many categories or want cleaner look