Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-multiplication-rule-941-en_uva-multiplication-rule-941-en
   name	uva-multiplication-rule-941-en
   section	Probability/Elementary Probability/General Rules/Multiplication rule
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	1.826
   p-value	0.8123

   Question

   According to the Centers for Disease Control in the USA, the long-term relative frequency of births to boys in the United States is approximately 0.512. Contrast the events:______
   * A = Two girls,‖ and * B = Two boys.  If you randomly choose one woman in the USA who has two children, what is then the probability that both children are girls?

   
   
   1. TRUE: 0,238
   2. FALSE: 0,250
   3. FALSE: 0,262
   4. FALSE: 0,488
   
   
   1. 0.238: Correct
   2. 0.250: Incorrect
   3. 0.262: Incorrect
   4. 0.488: Incorrect