Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-independent-events-1081-en_uva-independent-events-1081-en
   name	uva-independent-events-1081-en
   section	Probability/Elementary Probability/General Rules/Independent events
   type	schoice
   solution	FALSE, TRUE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2.971
   p-value	0.4038

   Question

   Pim calculates the probability of throwing heads at least once on two rolls with a pure coin. He reasons as follows: P(at least one head up) = P( first time a head comes up) + P(the second time a head comes up) = ½ +½ = 1. Is this reasoning correct?

   
   
   1. FALSE: Yes
   2. TRUE: No
   
   
   1. Yes: Incorrect
   2. No: Correct