Provide an appropriate response.
-Which of the random variables described below is/are discrete random variables? The random variable X represents the number of heads when a coin is flipped 20 times.The random variable Y represents the number of calls received by a car tow service in a year. The random variable Z represents the weight of a randomly selected student.
A)X, Y, and Z
B)X and Y
C)X only
D)Y only

Question

Provide an appropriate response.
-Which of the random variables described below is/are discrete random variables? The random variable X represents the number of heads when a coin is flipped 20 times.The random variable Y represents the number of calls received by a car tow service in a year. The random variable Z represents the weight of a randomly selected student. 
A)X, Y, and Z
B)X and Y
C)X only
D)Y only

Quizplus · Accepted Answer

Discrete random variables take on countable values. X, the number of heads in 20 coin flips, and Y, the number of calls received in a year, are countable. Z, the weight of a student, is continuous since weight can take on any value within a range.

Provide an Appropriate Response