Continuous random variables that can assume values at all points on an interval of values, with no breaks between possible values, are quite common. Which of the following items could NOT be classified as a continuous random variable?
A) profit per dollar of sales
B) cost per credit taken by graduate students
C) the average time it takes to assemble a car, or write a test
D) heights of human beings rounded to the nearest inch

Question

Quizplus · Accepted Answer

Heights of human beings rounded to the nearest inch cannot be classified as a continuous random variable as there are only a finite number of possible values due to rounding. The other options can assume values at all points on an interval of values without any breaks and therefore can be classified as continuous random variables.

Continuous Random Variables That Can Assume Values at All Points