Exam 1

1. Metainformation

   Tag	Value
   file	Probability_uva-random-variables-1078-en_uva-random-variables-1078-en
   name	uva-random-variables-1078-en
   section	Probability/Elementary Probability/Random variables
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Which of the following characteristics are continuous or discrete stochastic variables?  I. The speed of a vehicle on a highway. II. The number of accidents last year on a highway.

   
   
   1. FALSE: I and II are both continuous stochastic variables.
   2. FALSE: I is a discrete variable, but II is a continuous one.
   3. TRUE: I is a continuous variable, but II is a discrete one.
   4. FALSE: I and II are both discrete stochastic variables.
   
   
   1. I and II are both continuous stochastic variables…: Incorrect
   2. I is a discrete variable, but II is a continuous one…: Incorrect
   3. I is a continuous variable, but II is a discrete one…: Correct
   4. I and II are both discrete stochastic variables…: Incorrect