Constructing pie charts by utilising technology | Maths

Starter quiz

60 people were asked: "what do you most frequently drink whilst at work". The results will be placed in a pie chart with a total of 12 pre-defined sectors. How many sectors would represent water?
- 4
- 5
- 6
- 7
- 8 ✓
60 people were asked: "what do you most frequently drink whilst at work". The results will be placed in a pie chart with a total of 12 pre-defined sectors. How many people voted for milk?
- '15' ✓
A large set of information is collected and represented in a pie chart of 24 equally-sized sectors. Each one sector represents a frequency of 15. What is the total frequency of this dataset?
- '360' ✓
The incomplete ratio table shows a dataset being converted into angles to represent each subgroup as sectors on a pie chart. Match the letters to the correct missing values.
- a
  
  ⇔
  
  90 ✓
- b
  
  ⇔
  
  360 ✓
- c
  
  ⇔
  
  4 ✓
- d
  
  ⇔
  
  48 ✓
- e
  
  ⇔
  
  88 ✓
Which of these parts of a circle are essential when forming one sector of a circle?
- the whole circumference / perimeter of a circle
- part of the circumference of a circle, called an arc ✓
- two radiuses / radii of a circle (distance from centre to circumference) ✓
- two diameters of a circle (distance across the whole circle and through centre)
- two tangents of a circle (line that touches the circumference at one point)
The incomplete ratio table shows a dataset being converted into angles to represent each subgroup as sectors on a pie chart. Find the value of angle a, in degrees.
- '195' ✓