Statistics : Random Variables
Study concepts, example questions & explanations for Statistics
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Example Questions
Example Question #1 : Discrete
Which of the following variables is considered to be a discrete random variable?
Light absorbance of water samples
Tensions on a strings supporting differing weights
Weights of a sample of oranges
Number of students in a classroom
Heights of a group of trees
Number of students in a classroom
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."
Example Question #1 : Continuous
Which of the following is considered to be a continuous random variable?
Grades of students in a particular class
Heights of students in a classroom
Number of cars in a parking lot
Number of students in a classroom
Number of students in a particular class
Heights of students in a classroom
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 "heights of students in a classroom."
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