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Math 9 - Data Analysis - Coggle Diagram

- - - - Little/no planning goes into the selection of the sample
      - Choosing people from the population who are easy to access
    - - Entire population is asked to participate, but only those interested will participate
      - Participants don't have an equal chance to be surveyed
    - - Stratified
        
        Dividing population into distinct groups
        
        Choosing random amount of people from each group
      - Systematic
        
        From ordered list of population, choosing people at specific intervals
      - Randomly choosing certain number of people from population
      - People have an equal chance of being chosen
      - Most likely to represent the whole population without bias