Free Grade 3 Introduction to Introducing Sampling Essentials: Worked Examples Quizzes
Free Grade 3 quizzes for Introduction to Introducing Sampling Essentials: Worked Examples: 12 real questions with a full answer key and worked solutions. Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
Free
Stretch
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introduction to introducing sampling essentials: worked examples
Identify introduction to introducing sampling essentials: worked examples accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introduction to introducing sampling essentials: worked examples
Explain introduction to introducing sampling essentials: worked examples accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introduction to introducing sampling essentials: worked examples
Calculate introduction to introducing sampling essentials: worked examples accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introduction to introducing sampling essentials: worked examples
Compare introduction to introducing sampling essentials: worked examples accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Introduction to Introducing Sampling Essentials: Worked Examples works
Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.In a survey: Red 10, Blue 12, Green 8, Yellow 11. In a pie chart, what angle does Blue get?[1]
- 2.In a survey: Red 5, Blue 11, Green 12, Yellow 11. In a pie chart, what angle does Red get?[1]
- 3.In a survey: Red 3, Blue 12, Green 5, Yellow 14. In a pie chart, what angle does Yellow get?[1]
- 4.In a survey: Red 10, Blue 11, Green 2, Yellow 12. In a pie chart, what angle does Blue get?[1]
- 5.In a survey: Red 9, Blue 10, Green 11, Yellow 15. In a pie chart, what angle does Blue get?[2]
- 6.In a survey: Red 9, Blue 7, Green 8, Yellow 12. In a pie chart, what angle does Yellow get?[2]
- 7.In a survey: Red 5, Blue 7, Green 3, Yellow 5. In a pie chart, what angle does Red get?[2]
- 8.In a survey: Red 11, Blue 9, Green 6, Yellow 7. In a pie chart, what angle does Yellow get?[2]
- 9.In a survey: Red 7, Blue 2, Green 12, Yellow 2. In a pie chart, what angle does Green get?[3]
- 10.In a survey: Red 10, Blue 13, Green 4, Yellow 3. In a pie chart, what angle does Blue get?[3]
- 11.In a survey: Red 3, Blue 15, Green 14, Yellow 12. In a pie chart, what angle does Blue get?[3]
- 12.In a survey: Red 8, Blue 14, Green 2, Yellow 5. In a pie chart, what angle does Green get?[3]
Show answers and working
1. 105.4°
Total = 41. Blue fraction = 12/41. 12/41 × 360° = 105.4°.
2. 46.2°
Total = 39. Red fraction = 5/39. 5/39 × 360° = 46.2°.
3. 148.2°
Total = 34. Yellow fraction = 14/34. 14/34 × 360° = 148.2°.
4. 113.1°
Total = 35. Blue fraction = 11/35. 11/35 × 360° = 113.1°.
5. 80°
Total = 45. Blue fraction = 10/45. 10/45 × 360° = 80°.
6. 120°
Total = 36. Yellow fraction = 12/36. 12/36 × 360° = 120°.
7. 90°
Total = 20. Red fraction = 5/20. 5/20 × 360° = 90°.
8. 76.4°
Total = 33. Yellow fraction = 7/33. 7/33 × 360° = 76.4°.
9. 187.8°
Total = 23. Green fraction = 12/23. 12/23 × 360° = 187.8°.
10. 156°
Total = 30. Blue fraction = 13/30. 13/30 × 360° = 156°.
11. 122.7°
Total = 44. Blue fraction = 15/44. 15/44 × 360° = 122.7°.
12. 24.8°
Total = 29. Green fraction = 2/29. 2/29 × 360° = 24.8°.
Worked examples
In a survey: Red 9, Blue 13, Green 5, Yellow 4. In a pie chart, what angle does Red get?
- Total = 31.
- Red fraction = 9/31.
- 9/31 × 360° = 104.5°.
- Answer: 104.5°
In a survey: Red 15, Blue 11, Green 12, Yellow 8. In a pie chart, what angle does Yellow get?
- Total = 46.
- Yellow fraction = 8/46.
- 8/46 × 360° = 62.6°.
- Answer: 62.6°
In a survey: Red 14, Blue 13, Green 7, Yellow 12. In a pie chart, what angle does Green get?
- Total = 46.
- Green fraction = 7/46.
- 7/46 × 360° = 54.8°.
- Answer: 54.8°
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Uses 100 instead of 360 for pie-chart angles.
Correction: A full circle is 360°.
Forgets to find the total first.
Correction: Add all frequencies before working out fractions.
Teacher tips
- · Have pupils check that all angles add to 360°.
Parent tips
- · Look at charts in the news and ask what they show.
Real-life applications
- · News infographics, survey results.
Assessment objectives
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Frequently asked
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- Start with Introduction to Introducing Sampling Essentials: Step-by-step Method, What is Introduction to Introducing Sampling Essentials, Data Presentation. Each one has its own free lesson, worksheet and quiz.
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- Move on to Introduction to Introducing Sampling Essentials: Visual Models, Introduction to Introducing Sampling Essentials: Common Mistakes, Introduction to Introducing Sampling Essentials: Real-life Applications, Key Vocabulary of Introducing Sampling Essentials, which build directly on this idea.
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