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Displaying Data, SM-Bank 025

Bradley's class were asked to choose their favourite colour among four choices.

  • 5 voted for red which represented 90° on the sector graph
  • 2 voted for orange
  • 6 voted for blue
  • The rest voted for green

 

 

How many students in Bradley's class chose green?  (2 marks)

Show Answers Only

`7`

Show Worked Solution

\(\text{Since red is 90° it is one-quarter of the sector graph}\)

\(\rightarrow\ \text{There are 20 students in Bradley’s class.}\)

\(\therefore\ \text{Votes for green}\)

\(=20-(5+2+6)\)

\(=7\)