Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-expectedvalue-0118-en_vufsw-expectedvalue-0118-en
   name	vufsw-expectedvalue-0118-en
   section	probability/elementary probability/random variables/expected value
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	calculation
   Program	calculator
   Language	English
   Level	statistical thinking

   Question

   When examining how often gamers aged 18-25 play video games, a researcher finds the results in the table below.

   Based on this sample, what is the expected value of the number of hours per week (’x=aantal uren gamen per wek") that gamers aged 18-25 play video games? 
   Round to the nearest decimal place.

   

   
   
   1. TRUE: 7,7
   2. FALSE: 5,5
   3. FALSE: Between 3,0 and 5,5
   4. FALSE: Between 9,5 and 18,0
   
   
   1. True
   2. False
   3. False
   4. False