A dripping tap shows discrete data, because each individual drop can be counted. The data collected will simply show the number of drops. A gushing tap is an example of continuous data.

A random variable can be either discrete or continuous. Discrete random variables take on a countable number of distinct values. Consider an experiment where a coin is tossed three times.

Data can be presented in a number of ways ... Both variables are quantitative and could be discrete or continuous. A scatter graph is a line graph but without the line joining the points.