alleryStart learning →Which chart answers which question?
Exercise and reference answers
- Items
- Item
- Shares of one total
- Category
- Pie chart
- Item
- How a whole splits into parts
- Category
- Pie chart
- Item
- Comparing separate categories
- Category
- Bar graph
- Item
- Which category is largest
- Category
- Bar graph
- Item
- A quantity changing over time
- Category
- Line graph
- Item
- A trend across months
- Category
- Line graph
- Categories
- Item
- Pie chart
- Item
- Bar graph
- Item
- Line graph
Explanation
A pie chart shows parts of a whole
a bar graph compares separate categories
a line graph tracks change over time.
Picking the wrong one is the commonest data-interpretation error.
Source: syllabus Maths, Ch 4 Data Handling.