Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-rules-for-expected-values-921-en_uva-rules-for-expected-values-921-en
   name	uva-rules-for-expected-values-921-en
   section	Probability/Elementary Probability/Random variables/Rules for expected values
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Suppose the probability of a student completing Chemistry is 2/3 and English is 4/9. The probability that she will complete at least one subject is 4/5. Then what is the probability that she will complete both subjects?

   
   
   1. TRUE: 14/45
   2. FALSE: 41105
   3. FALSE: 29/45
   4. FALSE: 42/45
   
   
   1. 14/45: Correct
   2. 41105: Incorrect
   3. 29/45: Incorrect
   4. 42/45: Incorrect