Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_uva-correlation-164-en_uva-correlation-164-en
   name	uva-correlation-164-en
   section	Descriptive statistics/Summary Statistics/Bivariate statistics/Correlation
   type	schoice
   solution	FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.958
   p-value	0.132

   Question

   Suppose the variables x and y are related by correlation r. If a value of x lies two standard deviations from its mean, then the predicted value for y lies r times the same number of standard deviations of y. This is an example of

   
   
   1. FALSE: ‘multiple regression’
   2. FALSE: ‘regression toward the mean’
   3. TRUE: Simpson’s paradox
   
   
   1. ‘multiple regression’: Incorrect
   2. ‘regression toward the mean’: Incorrect
   3. ‘Simpson’s paradox’: Correct