Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_uva-correlation-792-en_uva-correlation-792-en
   name	uva-correlation-792-en
   section	Descriptive statistics/Summary Statistics/Bivariate statistics/Correlation
   type	schoice
   solution	TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	4.233
   p-value	0.0805

   Question

   In regression, the adequacy of the model can be determined using using r². When the slope parameter is equal to 0.5 and there s_x = s_y holds, then

   
   
   1. TRUE: R2 = 0.25
   2. FALSE: R2 = 0.5
   3. FALSE: R2 = 1
   
   
   1. R2 = 0.25: Correct
   2. R2 = 0.5: Incorrect
   3. R2 = 1: Incorrect