In the study described in question 6.1., researchers wanted to study whether the presence of more/te.ver symptomhis was associated with increased or decreased risk of an adverse event. Symptom informnation was collected via a checklist of 13 different symptoms. Participants were categorized based on how many of the symptoms they selected. For example, if a participant reported chest pain, shortness of breath, and nausea as their only symptoms, they had 3 symptoms and were put in the "_-3" group. Data on the N: 270 participants is given below. (Note. The sainple size is larger here than in 5.1 because not all participants provided compiete enough information to determine whether their symptoms were dynamic stable.)