Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_vufsw-standarddeviation-1082-en_vufsw-standarddeviation-1082-en
   name	vufsw-standarddeviation-1082-en
   section	descriptive statistics/summary statistics/measures of spread/standard deviation
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical literacy

   Question

   Outliers can have a major influence on the results of an analysis. What is the influence on the calculated standard deviation when an outlier is removed from the analysis?

   The calculated standard deviation of the variable …

   
   
   1. FALSE: stays always the same.
   2. FALSE: becomes always higher.
   3. TRUE: becomes always lower.
   4. FALSE: could become both higher or lower.
   
   

   Solution

   If you remove outliers the sd will always become lower

   Language
   English

   Levels of Difficulty
   Easy

   M&T BIS
   Default value

   M&T Descriptive statistics
   Default value

   M&T Distributions
   Default value

   
   
   1. False
   2. False
   3. True
   4. False