Discrete and Continuous Data
Data can be Descriptive (like "high" or "fast") or Numerical (numbers).
Discrete data is counted,
Continuous data is measured
Discrete Data can only take certain values.
Example: the number of students in a class
We can't have half a student!
Example: the results of rolling 2 dice
Only has the values 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12
Continuous Data can take any value (within a range)
- A person's height: could be any value (within the range of human heights), not just certain fixed heights,
- Time in a race: you could even measure it to fractions of a second,
- A dog's weight,
- The length of a leaf,
- Lots more!