How do you know if its discrete or continuous?
A discrete variable is a variable whose value is obtained by counting. A continuous variable is a variable whose value is obtained by measuring. A random variable is a variable whose value is a numerical outcome of a random phenomenon.
What does it mean if a function is discrete?
Discrete Functions A discrete function is a function in which the domain and range are each a discrete set of values, rather than an interval in R. If a function is discrete, it does not include all of the values between two given numbers, but rather only specific values in a particular range.