It represent some sort of quantitative measurement.
for example: Height of a people, stock prices
Integer based, often counts of something
for example: How many times did I fillip “Heads”?
Has an infinite no of possible values
for example : How much rain fall on a given day?
For example: Gender, Yes/No, Race etc
you can assign some number to categorical data but they don’t have any mathematical meaning
Mixture of numerical and categorical
categorical data has mathematical meaning
For example: Movie rating on a scale of 1–5
Rating must be 1,2,3,4,5
They have mathematical meaning. Like rating 1 movie is worse than rating 2 movie