Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-multiplication-rule-639-en_uva-multiplication-rule-639-en
   name	uva-multiplication-rule-639-en
   section	Probability/Elementary Probability/General Rules/Multiplication rule
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Two events A and B are independent if holds

   
   
   1. FALSE: P (A ∪ B) = P (A) + P (B)
   2. FALSE: P (A ∪ B) = P (A) + P (B) - P (A ∩ B)
   3. TRUE: P (A ∩ B) = P (A) P (B)
   4. FALSE: P (A | B) = P (B | A)
   
   
   1. P (A ∪ B) = P (A) + P (B): Incorrect
   2. P (A ∪ B) = P (A) + P (B) - P (A ∩ B): Incorrect
   3. P (A ∩ B) = P (A) P (B): Correct
   4. P (A | B) = P (B | A): Incorrect