A health psychologist conducted a survey investigating stress-management preferences among a sample of 150 university students. The results showed that 30 students preferred mindfulness meditation, while 90 students preferred physical exercise.
What is the simplified ratio of students who prefer mindfulness meditation to those who prefer physical exercise?
1:31:31:3
3:13:13:1
1:41:41:4
2:32:32:3
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.