Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_uva-variance-512-en_uva-variance-512-en
   name	uva-variance-512-en
   section	Descriptive statistics/Summary Statistics/Measures of Spread/Variance
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.613
   p-value	0.1836

   Question

   One takes a sample of 8 individuals from a population and measures their weight loss (in kg) after following a 12-week diet, with the following results:______. 12, 7, 2, 5, 12, 20, 3, 8. The sample variance s² is equal to

   
   
   1. FALSE: 4.35
   2. FALSE: 5.9
   3. FALSE: 30.48
   4. TRUE: 34.84
   
   
   1. 4.35: Incorrect
   2. 5.9: Incorrect
   3. 30.48: Incorrect
   4. 34.84: Correct