• Variables are abstractions within programs which represent a value
  • Values can be individual data points or a list/collection that contains many data values
  • Types of data: numbers, Booleans (T/F), lists, and strings
  • A list is made up of elements organized in a specific order
  • An element is a unique, individual value in a list
  • A string differs from a list as it is a sequence of characters rather than elements

  • Data abstraction uses a list by taking specific data elements from a list and organizing into a whole, less complex representation of the values such as a table

  • python lists are very powerful and you can organize different elements into lists
  • variables are very powerful because you can perform math, functions, dictionaries, and lots of other things on variables that make themv ery flexible