Bar charts (AQA GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What type of data do bar charts represent?
What type of data do bar charts represent?
Bar charts represent discrete, qualitative data.
How should you start the vertical axis scale?
How should you start the vertical axis scale?
Always start the vertical axis at zero.
What is the importance of equal bar spacing?
What is the importance of equal bar spacing?
Equal spacing ensures fair comparisons between categories.
How do you calculate total responses from a chart?
How do you calculate total responses from a chart?
Add all individual frequencies from the chart.
What distinguishes bar charts from line graphs?
What distinguishes bar charts from line graphs?
Bar charts use bars; line graphs use points connected by lines.
If a bar reaches 14.5, what value should you estimate?
If a bar reaches 14.5, what value should you estimate?
Estimate the value as 15.
What should you check when reading a bar chart?
What should you check when reading a bar chart?
Always check the scale carefully.
What is the first step in making a bar chart?
What is the first step in making a bar chart?
Choose categories and label the axes clearly.
How do you find how many more preferred Bristol over Swindon?
How do you find how many more preferred Bristol over Swindon?
Subtract Swindon's value from Bristol's value.
What is the total if Bath=12, Bristol=15, Gloucester=10, Swindon=8?
What is the total if Bath=12, Bristol=15, Gloucester=10, Swindon=8?
Total is 45 people.