Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-random-variables-301-en_uva-random-variables-301-en
   name	uva-random-variables-301-en
   section	Probability/Elementary Probability/Random variables
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	1.482
   p-value	0.8628

   Question

   Of 80 patients with cancer in the head and neck area, a depression score was determined using the CES-D score list, a score for depression was determined. This score was then assigned to one of three classes. Also, the gender of the patient was noted. The results are shown in the cross tabulation below shown.

   ———— ————- —————– ————- Frequency CES-D < 10 10 ≤ CES-D ≤ 16 CES-D > 16 male 5 15 10 female 6 20 24 ———— ————- —————– ————-

   The probability that the person drawn is male and has a CES-D score of 16 or less, is equal to

   
   
   1. FALSE: 19%
   2. TRUE: 25%
   3. FALSE: 50%
   4. FALSE: 66.67%
   
   
   1. 19%: Incorrect
   2. 25%: Correct
   3. 50%: Incorrect
   4. 66.67%: Incorrect