Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_vufgb-correlation-002-en_vufgb-correlation-002-en
   name	vufgb-correlation-002-en
   section	Descriptive statistics/Summary Statistics/Bivariate statistics/Correlation
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Calculation
   Program
   Language	English
   Level	Statistical Thinking

   Question

   In a particular study, the sample means of X and Y are 90 and 82 respectively. Also, $S_{x} = 12$, $S_{y} = 7.8$ and the estimated regression equation is ${Y}' = 23.4+0.62X$.

   What is the correlation between X and Y?

   
   
   1. TRUE: 0.95
   2. FALSE: 0.40
   3. FALSE: -0.95
   4. FALSE: -0.40
   
   
   1. Correct
   2. Incorrect
   3. Incorrect
   4. Incorrect