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Example Question #1 : Discrete
Which of the following variables is considered to be a discrete random variable?
Possible Answers:
Number of students in a classroom
Weights of a sample of oranges
Light absorbance of water samples
Heights of a group of trees
Tensions on a strings supporting differing weights
Correct answer:
Number of students in a classroom
Explanation:
A random variable can be described as the numerical value of the outcome of a particular phenomena. There are two general types of random variables: discrete and continuous. A discrete random variable is a variable whose value is determined through counting. On the other hand, continuous random variables are derived through measurements and calculations; therefore the correct answer is "number of students in a classroom."
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