3.1 Quick revision

We recommend trying these Quick revision questions before your tutorial.

A study of obstructive sleep apnoea (OSA) in adults with Down Syndrome (de Carvalho et al. 2020) had \(n = 60\) adults undergo a sleep study. The data are shown in Fig. 3.1.

FIGURE 3.1: The Obstructive sleep apnoea data set

  1. What would be the appropriate graph to show the distribution of the age of the participants?
  2. What would be the appropriate graph to show the distribution of the gender of participants?
  3. What would be the appropriate graph to show the relationship between gender and REI?
  4. What would be the appropriate graph to show the relationship between age and REI?
  1. Age is quantitative, so histograms or stem-and-leaf plots are appropriate.
  2. Gender is qualitative, so bar charts or pie charts are appropriate.
  3. Gender is qualitative, and REI is quantitative, so a boxplot is apppropriate.
  4. Both age and REI are quantitative, so a scatterplot is appropriate.

References

de Carvalho AA, Amorim FF, Santana LA, de Almeida KJQ, Santana ANC, Neves F de AR. STOP-Bang questionnaire should be used in all adults with Down Syndrome to screen for moderate to severe obstructive sleep apnea. PloS ONE. 2020;15(5):e0232596.