Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-conditional-probability-565-en_uva-conditional-probability-565-en
   name	uva-conditional-probability-565-en
   section	Probability/Elementary Probability/Conditional probability
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   The following cross tabulation includes data from 100 individuals for two variables A and B. We randomly draw someone from among the 100 individuals.

   ——- ——- ——- ——- A = 1 A = 2 A = 3 B = 1 19 20 23 B = 2 18 2 18 ——- ——- ——- ——-

   For this person, P(B = 1 | A = 2) is equal to

   
   
   1. FALSE: 0.09
   2. FALSE: 0.2
   3. FALSE: 0.54
   4. TRUE: 0.91
   
   
   1. 0.09: Incorrect
   2. 0.2: Incorrect
   3. 0.54: Incorrect
   4. 0.91: Correct