Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-random-variables-1314-en_uva-random-variables-1314-en
   name	uva-random-variables-1314-en
   section	Probability/Elementary Probability/Random variables
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Suppose we do a probability experiment with a mass production of light bulbs. We take a sample size of 120. Define two chance variables: X is the number of bulbs that are defective, and Y is the burn time per bulb. Which random variable in this probability experiment is a continuous variable?

   
   
   1. FALSE: X is a continuous variable.
   2. TRUE: Y is a continuous variable.
   3. FALSE: X and Y are both continuous variables.
   4. FALSE: X and Y are both not continuous variables.
   
   
   1. X is a continuous variable..: Incorrect
   2. Y is a continuous variable…: Correct
   3. X and Y are both continuous variables…: Incorrect
   4. X and Y are both not continuous variables…: Incorrect