Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-rules-for-expected-values-659-en_uva-rules-for-expected-values-659-en
   name	uva-rules-for-expected-values-659-en
   section	Probability/Elementary Probability/Random variables/Rules for expected values
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   If A = {4,5,6,8} and B = {3,5,7,8}, what is the union of A and B?

   
   
   1. FALSE: A ∪ B = ∅
   2. TRUE: A ∪ B = {3,4,5,6,7,8}
   3. FALSE: A ∪ B = {3,4,5,6,8}
   4. FALSE: A ∪ B = {4,5,6,7,8}
   
   
   1. A ∪ B = ∅: Incorrect
   2. A ∪ B = {3,4,5,6,7,8}: Correct
   3. A ∪ B = {3,4,5,6,8}: Incorrect
   4. A ∪ B = {4,5,6,7,8}: Incorrect