Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-independent-events-381-en_uva-independent-events-381-en
   name	uva-independent-events-381-en
   section	Probability/Elementary Probability/General Rules/Independent events
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3
   p-value	0.311

   Question

   It is given that P(A) = 0.4, P(B) = 0.25 and P(A ∩ B) = 0.1. Are the events A and B independent?

   
   
   1. FALSE: Yes, because P(A) = P(B | A).
   2. TRUE: Yes, because P(A) x P(B) = P(A ∩ B).
   3. FALSE: No, because P(A) ≠ P(A | B).
   4. FALSE: No, because P(A ∩ B) ≤ P(A).
   
   
   1. Yes, because P(A) = P(B | A)…: Incorrect
   2. Yes, because P(A) x P(B) = P(A ∩ B)…: Correct
   3. No, because P(A) ≠ P(A | B)…: Incorrect
   4. No, because P(A ∩ B) ≤ P(A)…: Incorrect