Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-random-variables-1073-en_uva-random-variables-1073-en
   name	uva-random-variables-1073-en
   section	Probability/Elementary Probability/Random variables
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	0.524
   p-value	0.9056

   Question

   Suppose the probability distribution of X = the number of jobs per student at a university in the past year is as follows:_____________.
   

   —————— —— —— —— —— —— Number of jobs X 0 1 2 3 4 Odds 0.14 0.37 0.29 0.15 0.05 —————— —— —— —— —— ——

    
   

   What then is the probability that, choosing a random student, this student had two or fewer jobs during the past year, such as P(X ≤ 2)?

   
   
   1. FALSE: 0,14
   2. FALSE: 0,29
   3. FALSE: 0,37
   4. TRUE: 0,80
   
   
   1. 0.14: Incorrect
   2. 0.29: Incorrect
   3. 0.37: Incorrect
   4. 0.80: Correct