Math 8 · Unit 16: Interpreting and discussing results · Cambridge Lower Secondary Maths Stage 8

Questions

1. 1. 30 people; 10 choose tea. Angle for tea?

   • 120°
   • 36°
   • 10°
   • 100°
   Check

2. 2. 36 people surveyed. Each person is how many degrees?

   • 1°
   • 10°
   • 36°
   • 360°
   Check

3. 3. A sector of 90° in a chart of 200 people represents …

   • 25 people
   • 50 people
   • 100 people
   • 90 people
   Check

4. 4. Sectors 100°, 140°, x. What is x?

   • 120°
   • 80°
   • 240°
   • 60°
   Check

5. 5. A sector is 72°. What fraction of the whole?

   • 72/100
   • ⅕
   • ¼
   • ⅙
   Check

6. 6. 60 students, 15 walk. Angle?

   • 90°
   • 60°
   • 15°
   • 45°
   Check

7. 7. A pie chart sector is 45%. Angle?

   • 45°
   • 81°
   • 162°
   • 180°
   Check

8. 8. Can two pie charts with different totals be compared by angle alone?

   • Yes
   • No
   Check

9. 9. In a pie chart of 120 people, how many does a 30° sector represent?

   • 12
   • 30
   • 10
   • 4
   Check

10. 10. A pie chart is best for showing …

    • change over time
    • exact values
    • correlation
    • proportions of a whole
    Check

11. 11. 18 people: 6 choose red. Angle for red?

    • 108°
    • 6°
    • 60°
    • 120°
    Check

12. 12. A sector of 180° represents …

    • a quarter
    • 180 people
    • half the data
    • all the data
    Check

13. 13. Pie chart: 40 people, sector 54°. How many people?

    • 9
    • 15
    • 6
    • 54
    Check

14. 14. Angles in a pie chart add up to …

    • 100°
    • 180°
    • 360°
    • 90°
    Check

15. 15. The pie chart shows the favourite sports of 90 people. The football sector is 160°. How many chose football?

    • 160
    • 40
    • 32
    • 45
    Check