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Pie charts and numerical comparisons
Pie charts and numerical comparisons
Example 1
How many students chose Music?
Students choosing an activityView data table
| Activity | Number of students |
|---|
| Art | 12 |
|---|
| Music | 3 |
|---|
| Sport | 15 |
|---|
| Coding | 9 |
|---|
Show worked answer
Answer: 3
- The Music bar reaches 3 students.
Example 2
By how many kilograms did the amount increase from Tue to Thu?
Paper collected for recyclingView data table
| Day | Paper collected (kg) |
|---|
| Mon | 18 |
|---|
| Tue | 17 |
|---|
| Wed | 19 |
|---|
| Thu | 22 |
|---|
| Fri | 20 |
|---|
Show worked answer
Answer: 5
- Thursday shows 22kg and Tuesday shows 17kg.
- The increase is 22−17=5kg.
Example 3
The pie chart represents 160 students. How many chose Cycle?
Preferred way to travel to school- Walk20%
- Cycle15%
- Bus30%
- Car35%
Show worked answer
Answer: 24
- Cycle represents 15%.
- Calculate 10015×160=24 students.
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