Represent Data: Manage Numerical Continuous Data using Groups . Numerical data is data represented using numbers. Numerical data is also known as qualitative data. Numerical data can be one of two types – Discrete or Continuous. Discrete numerical data have variations that are distinct from one another e.g. number of times heads when a coin is flipped. There are no values between the number of flips i.e. 1 or 2. It makes no sense to get 1.5 heads. . Continuous data have variations that could for