Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-conditional-probability-661-en_uva-conditional-probability-661-en
   name	uva-conditional-probability-661-en
   section	Probability/Elementary Probability/Conditional probability
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Flip two pure coins independently. We call the following two events A and B:）.
   * A = Coint on the first toss. * B = Both rolls give the same outcome.  What then is the probability P(B)?

   
   
   1. FALSE: P (B|A) = 0.125
   2. FALSE: P (B|A) = 0.25
   3. TRUE: P (B|A) = 0.50
   4. FALSE: P (B|A) = 1
   
   
   1. P (B|A) = 0.125: Incorrect
   2. P (B|A) = 0,25: Incorrect
   3. P (B|A) = 0.50: Correct
   4. P (B|A) = 1: Incorrect