Each of the following scenarios can be described as a discrete random variable, a continuous random variable, or not a random variable. Which scenarios are continuous random variables?


a. The number of pages in various novels in a library
b. The amount of milk (in liters) a cow produces in a day
c. The number of languages spoken by university professors
d. Types of plants in a botanical garden
e. The time (in minutes) it takes for a student to complete a math quiz

• A. b and e
• B. a and c
• C. a and b
• D. c and e

Answer: (A)