Exam 1

1. Metainformation

   Tag	Value
   file	Probability_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 between the ages of 18-25 play video games play, one researcher finds the results in the table below.

   What is the expected value (expected value) of the number of hours that gamers aged 18-25 years play video games per week based on this sample? Round to one decimal place.

   

   
   
   1. TRUE: 7.7 hours
   2. FALSE: 5.5 hours
   3. FALSE: Between 3.0 and 5.5 hours
   4. FALSE: Between 9.5 and 18.0 hours
   
   
   1. True
   2. False
   3. False
   4. False