Pillman et al. (A-11) studied patients with acute brief episodes of psychoses. The researchers classified subjects into four personality types: obsessiod, asthenic=low self-confident, asthenic=high self-confident, nervous=tense, and undeterminable. The table below cross-classifies these personality types with three groups of subjects—those with acute and transient psychotic disorders (ATPD), those with “positive” schizophrenia (PS), and those with bipolar schizo-affective disorder (BSAD): REVIEW QUESTIONS AND EXERCISES 87 Personality Type Obsessoid (O) Asthenic=low Self-confident (A) Asthenic=high Self-confident (S) Nervous=tense (N) Undeterminable (U) ATPD (1) 9 20 5 4 4 PS (2) 2 17 3 7 13 42 BSAD (3) Total Total 42 6 17 15 52 8 16 4 15 9 26 42 126 Source: Frank Pillmann, Raffaela Bloink, Sabine Balzuweit, Annette Haring, and Andreas Marneros, “Personality and Social Interactions in Patients with Acute Brief Psychoses,” Journal of Nervous and Mental Disease, 191 (2003), 503–508. Find the following probabilities if a subject in this study is chosen at random: (f) P(3)
Pillman et al. (A-11) studied patients with acute brief episodes of psychoses. The researchers classified subjects into four personality types: obsessiod, asthenic=low self-confident, asthenic=high self-confident, nervous=tense, and undeterminable. The table below cross-classifies these personality types with three groups of subjects—those with acute and transient psychotic disorders (ATPD), those with “positive” schizophrenia (PS), and those with bipolar schizo-affective disorder (BSAD):
REVIEW QUESTIONS AND EXERCISES 87
Personality Type
Obsessoid (O)
Asthenic=low Self-confident (A) Asthenic=high Self-confident (S) Nervous=tense (N) Undeterminable (U)
ATPD (1)
9 20 5 4 4
PS (2)
2 17 3 7 13
42
BSAD (3)
Total
Total 42
6 17 15 52 8 16 4 15 9 26
42 126
Source: Frank Pillmann, Raffaela Bloink, Sabine Balzuweit, Annette Haring, and Andreas Marneros, “Personality and Social Interactions in Patients with Acute Brief Psychoses,” Journal of Nervous and Mental Disease, 191 (2003), 503–508.
Find the following probabilities if a subject in this study is chosen at random: (f) P(3)
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