Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-events-999-en_uva-events-999-en
   name	uva-events-999-en
   section	Probability/Elementary Probability/Events
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.029
   p-value	0.2935

   Question

   Roll a pure die once. We define the events A and B as follows:______________.
   * A: the number of eyes is greater than 4,‖. * B: the number of eyes is divisible by three.  What then is the union of A and B, or A ∪ B?

   
   
   1. FALSE: A ∪ B = {6}
   2. FALSE: A ∪ B = {5,6}
   3. TRUE: A ∪ B = {3,5,6}
   4. FALSE: A ∪ B = {1,2,3,4,5,6}
   
   
   1. A ∪ B = {6}: Incorrect
   2. A ∪ B = {5,6}: Incorrect
   3. A ∪ B = {3,5,6}: Correct
   4. A ∪ B = {1,2,3,4,5,6}: Incorrect