What is the difference between a discrete variable and continuous variable?

Answer 1

Discrete and Continuous Random Variables A discrete variable is a variable whose value is obtained by counting.

 

Examples:     number of students present

                                   number of red marbles in a jar

                                   number of heads when flipping three coins

                                   students’ grade level

 

A continuous variable is a variable whose value is obtained by measuring.

 

Examples:     height of students in class

                       weight of students in class

                       time it takes to get to school

                       distance traveled between classes: