Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-general-rules-1161-en_uva-general-rules-1161-en
   name	uva-general-rules-1161-en
   section	Probability/Elementary Probability/General Rules
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Suppose that if rain is expected the probability is 75% that it will will actually rain. If no rain is expected the probability is 30% that it will rain. Rain is expected for 20% of the days of the next month. What is the probability that it will rain?

   
   
   1. FALSE: 0,13
   2. FALSE: 0,10
   3. FALSE: 0,20
   4. TRUE: 0,39
   
   
   1. 0.13: Incorrect
   2. 0.10: Incorrect
   3. 0.20: Incorrect
   4. 0.39: Correct